third_party/webgl/sdk/tests/extra/lots-of-polys-example.html - Issue 10399113: Roll webgl conformance tests to r17874: part 2, adding r17874

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Issue 10399113: Roll webgl conformance tests to r17874: part 2, adding r17874 (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/

Patch Set: Created 8 years, 7 months ago

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	1 <!--

	2

	3 /*

	4 ** Copyright (c) 2012 The Khronos Group Inc.

	5 **

	6 ** Permission is hereby granted, free of charge, to any person obtaining a

	7 ** copy of this software and/or associated documentation files (the

	8 ** "Materials"), to deal in the Materials without restriction, including

	9 ** without limitation the rights to use, copy, modify, merge, publish,

	10 ** distribute, sublicense, and/or sell copies of the Materials, and to

	11 ** permit persons to whom the Materials are furnished to do so, subject to

	12 ** the following conditions:

	13 **

	14 ** The above copyright notice and this permission notice shall be included

	15 ** in all copies or substantial portions of the Materials.

	16 **

	17 ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

	18 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

	19 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

	20 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

	21 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

	22 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

	23 ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.

	24 */

	25

	26 -->

	27

	28 <!DOCTYPE html>

	29 <html>

	30 <head>

	31 <meta charset="utf-8">

	32 <title>WebGL Lots of polygons example.</title>

	33 <link rel="stylesheet" href="../resources/js-test-style.css"/>

	34 <script src="../resources/js-test-pre.js"></script>

	35 <script src="../conformance/resources/webgl-test-utils.js"> </script>

	36 </head>

	37 <body>

	38 <canvas id="example" width="1024" height="1024" style="width: 40px; height: 40px ;">

	39 </canvas>

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

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

	42 <script>

	43 window.onload = init;

	44 debug("Tests a WebGL program that draws a bunch of large polygons");

	45

	46 function init() {

	47 if (confirm(

	48 "after clicking ok your machine may be come unresponsive or crash")) {

	49 main();

	50 } else {

	51 debug("cancelled");

	52 }

	53 }

	54

	55 function main() {

	56 var wtu = WebGLTestUtils;

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

	58 canvas.addEventListener("webglcontextlost", function(e) { e.preventDefault(); }, false);

	59 canvas.addEventListener("webglcontextrestored", function(e) { }, false);

	60

	61 var gl = wtu.create3DContext(canvas);

	62 var program = wtu.setupTexturedQuad(gl);

	63

	64 assertMsg(gl.getError() == gl.NO_ERROR, "Should be no errors from setup.");

	65

	66 var tex = gl.createTexture();

	67 gl.enable(gl.BLEND);

	68 gl.disable(gl.DEPTH_TEST);

	69

	70 wtu.fillTexture(gl, tex, 4096, 4096, [0, 192, 128, 255], 0);

	71 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after creating texture");

	72

	73 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);

	74 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);

	75 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);

	76 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);

	77 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after setting texture params");

	78

	79 var loc = gl.getUniformLocation(program, "tex");

	80 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after getting tex locations");

	81 gl.uniform1i(loc, 0);

	82 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after setting tex uniform");

	83

	84 var numQuads = 100000;

	85 var indexBuf = new ArrayBuffer(numQuads * 6);

	86 var indices = new Uint8Array(indexBuf);

	87 for (var ii = 0; ii < numQuads; ++ii) {

	88 var offset = ii * 6;

	89 indices[offset + 0] = 0;

	90 indices[offset + 1] = 1;

	91 indices[offset + 2] = 2;

	92 indices[offset + 3] = 3;

	93 indices[offset + 4] = 4;

	94 indices[offset + 5] = 5;

	95 }

	96 var indexBuffer = gl.createBuffer();

	97 gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);

	98 gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, indices, gl.STATIC_DRAW);

	99 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after creating index buffer");

	100 gl.drawElements(gl.TRIANGLES, numQuads * 6, gl.UNSIGNED_BYTE, 0);

	101 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after drawing");

	102

	103 successfullyParsed = true;

	104 }

	105 </script>

	106 </body>

	107 </html>

	108

	109

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