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8eeed3c374
The 1.0.1 release is really close, and upgrading now allows us to give feedback and make sure that all tests are passable. The canonical URL for this test suite is https://cvs.khronos.org/svn/repos/registry/trunk/public/webgl/sdk/tests/webgl-conformance-tests.html --HG-- rename : content/canvas/test/webgl/conformance/include.vs => content/canvas/test/webgl/conformance/glsl/misc/include.vs
117 lines
3.8 KiB
HTML
117 lines
3.8 KiB
HTML
<!--
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Copyright (c) 2009 The Chromium Authors. All rights reserved.
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Use of this source code is governed by a BSD-style license that can be
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found in the LICENSE file.
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-->
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta charset="utf-8">
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<title>WebGL Slow Shader example.</title>
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<link rel="stylesheet" href="../resources/js-test-style.css"/>
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<script src="../resources/js-test-pre.js"></script>
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<script src="../conformance/resources/webgl-test-utils.js"> </script>
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</head>
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<body>
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<canvas id="example" width="1024" height="1024" style="width: 40px; height: 40px;">
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</canvas>
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<div id="description"></div>
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<div id="console"></div>
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<script id="slow" type="text/something-not-javascript">
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precision mediump float;
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uniform sampler2D tex;
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varying vec2 texCoord;
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void main() {
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gl_FragColor = texture2D(tex, texture2D(tex, texture2D(tex, texCoord).xy).xy);
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}
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</script>
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<script>
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window.onload = main;
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debug("Tests drawing a very slow shader.");
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var wtu = WebGLTestUtils;
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var canvas = document.getElementById("example");
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canvas.addEventListener("webglcontextlost", function(e) { e.preventDefault(); }, false);
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canvas.addEventListener("webglcontextrestored", function(e) { }, false);
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var gl = wtu.create3DContext(canvas);
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var maxTexSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);
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var texSize = Math.min(maxTexSize, 4096);
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debug("Max Texture size: " + maxTexSize);
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debug("Texture size: " + texSize);
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var shaderSource =
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document.getElementById("slow").text.replace(/\$size/g, texSize + ".0");
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wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after getting a context");
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var vs = wtu.setupSimpleTextureVertexShader(gl);
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var fs = wtu.loadShader(
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gl,
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shaderSource,
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gl.FRAGMENT_SHADER)
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var program = wtu.setupProgram(
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gl,
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[vs, fs],
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['vPosition', 'texCoord0'],
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[0, 1]);
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wtu.setupUnitQuad(gl, 0, 1);
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wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after program setup");
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var tex = gl.createTexture();
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gl.enable(gl.BLEND);
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gl.disable(gl.DEPTH_TEST);
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wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after creating texture");
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debug("preparing...");
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var numBytes = texSize * texSize * 4;
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var pixelBuf = new ArrayBuffer(numBytes);
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var pixels = new Uint8Array(pixelBuf);
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for (var ii = 0; ii < numBytes; ++ii) {
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pixels[ii] = Math.random() * 255;
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}
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gl.bindTexture(gl.TEXTURE_2D, tex);
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gl.texImage2D(
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gl.TEXTURE_2D, 0, gl.RGBA, texSize, texSize, 0,
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gl.RGBA, gl.UNSIGNED_BYTE, pixels);
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wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after texture setup");
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
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wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after texture param setting");
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var loc = gl.getUniformLocation(program, "tex");
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wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after getting tex location");
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gl.uniform1i(loc, 0);
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wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after setting tex uniform");
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var numQuads = 1000;
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var indexBuf = new ArrayBuffer(numQuads * 6);
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var indices = new Uint8Array(indexBuf);
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for (var ii = 0; ii < numQuads; ++ii) {
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var offset = ii * 6;
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indices[offset + 0] = 0;
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indices[offset + 1] = 1;
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indices[offset + 2] = 2;
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indices[offset + 3] = 3;
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indices[offset + 4] = 4;
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indices[offset + 5] = 5;
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}
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var indexBuffer = gl.createBuffer();
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gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
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gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, indices, gl.STATIC_DRAW);
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wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after setting up indices");
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function main () {
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if (confirm(
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"after clicking ok your machine may be come unresponsive or crash")) {
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gl.drawElements(gl.TRIANGLES, numQuads * 6, gl.UNSIGNED_BYTE, 0);
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wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after drawing");
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} else {
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debug("cancelled");
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}
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}
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successfullyParsed = true;
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</script>
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</body>
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</html>
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