mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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211 lines
6.5 KiB
HTML
211 lines
6.5 KiB
HTML
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<!--
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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 http-equiv="Content-Type" content="text/html; charset=utf-8">
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<title>WebGL BindAttribLocation Conformance Tests</title>
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<link rel="stylesheet" href="../resources/js-test-style.css"/>
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<script src="../resources/desktop-gl-constants.js" type="text/javascript"></script>
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<script src="../resources/js-test-pre.js"></script>
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<script src="resources/webgl-test.js"></script>
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</head>
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<body>
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<div id="description"></div>
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<div id="console"></div>
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<canvas style="border: 1px solid black;" id="canvas" width="50" height="50">
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</canvas><script id="vshader" type="text/something-not-javascript">
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attribute vec4 vPosition;
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attribute vec4 vColor;
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varying vec4 color;
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void main()
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{
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gl_Position = vPosition;
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color = vColor;
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}
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</script>
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<script id="fshader" type="text/something-not-javascript">
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precision mediump float;
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varying vec4 color;
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void main()
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{
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gl_FragColor = color;
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}
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</script>
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<script>
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description("This test ensures WebGL implementations don't allow names that start with 'gl_' when calling bindAttribLocation.");
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debug("");
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debug("Canvas.getContext");
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var gl = create3DContext(document.getElementById("canvas"));
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if (!gl) {
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testFailed("context does not exist");
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} else {
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testPassed("context exists");
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function fail(x,y, buf, shouldBe)
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{
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var i = (y*50+x) * 4;
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var reason = "pixel at ("+x+","+y+") is ("+buf[i]+","+buf[i+1]+","+buf[i+2]+","+buf[i+3]+"), should be "+shouldBe;
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testFailed(reason);
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}
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function pass()
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{
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testPassed("drawing is correct");
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}
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function loadShader(shaderType, shaderId) {
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// Get the shader source.
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var shaderSource = document.getElementById(shaderId).text;
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// Create the shader object
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var shader = gl.createShader(shaderType);
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if (shader == null) {
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debug("*** Error: unable to create shader '"+shaderId+"'");
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return null;
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}
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// Load the shader source
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gl.shaderSource(shader, shaderSource);
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// Compile the shader
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gl.compileShader(shader);
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// Check the compile status
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var compiled = gl.getShaderParameter(shader, gl.COMPILE_STATUS);
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if (!compiled) {
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// Something went wrong during compilation; get the error
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var error = gl.getShaderInfoLog(shader);
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log("*** Error compiling shader '"+shader+"':"+error);
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gl.deleteShader(shader);
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return null;
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}
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return shader;
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}
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debug("");
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debug("Checking gl.bindAttribLocation.");
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var program = gl.createProgram();
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gl.bindAttribLocation(program, 0, "gl_foo");
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assertMsg(gl.getError() == gl.INVALID_OPERATION,
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"bindAttribLocation should return INVALID_OPERATION if name starts with 'gl_'");
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gl.bindAttribLocation(program, 0, "gl_TexCoord0");
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assertMsg(gl.getError() == gl.INVALID_OPERATION,
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"bindAttribLocation should return INVALID_OPERATION if name starts with 'gl_'");
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var vs = loadShader(gl.VERTEX_SHADER, "vshader");
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var fs = loadShader(gl.FRAGMENT_SHADER, "fshader");
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gl.attachShader(program, vs);
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gl.attachShader(program, fs);
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var positions = gl.createBuffer();
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gl.bindBuffer(gl.ARRAY_BUFFER, positions);
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gl.bufferData(gl.ARRAY_BUFFER, new WebGLFloatArray([ 0,0.5,0, -0.5,-0.5,0, 0.5,-0.5,0 ]), gl.STATIC_DRAW);
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var colors = gl.createBuffer();
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gl.bindBuffer(gl.ARRAY_BUFFER, colors);
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gl.bufferData(gl.ARRAY_BUFFER, new WebGLFloatArray([
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0,1,0,1,
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0,1,0,1,
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0,1,0,1]), gl.STATIC_DRAW);
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function setBindLocations(colorLocation, positionLocation) {
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gl.bindAttribLocation(program, positionLocation, "vPosition");
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gl.bindAttribLocation(program, colorLocation, "vColor");
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gl.linkProgram(program);
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gl.useProgram(program);
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var linked = (gl.getProgramParameter(program, gl.LINK_STATUS) != 0);
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assertMsg(linked, "program linked successfully");
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debug("vPosition:" + gl.getAttribLocation(program, "vPosition"))
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debug("vColor :" + gl.getAttribLocation(program, "vColor"))
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assertMsg(gl.getAttribLocation(program, "vPosition") == positionLocation,
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"location of vPositon should be " + positionLocation);
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assertMsg(gl.getAttribLocation(program, "vColor") == colorLocation,
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"location of vColor should be " + colorLocation);
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var ploc = gl.getAttribLocation(program, "vPosition");
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var cloc = gl.getAttribLocation(program, "vColor");
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gl.bindBuffer(gl.ARRAY_BUFFER, positions);
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gl.enableVertexAttribArray(positionLocation);
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gl.vertexAttribPointer(positionLocation, 3, gl.FLOAT, false, 0, 0);
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gl.bindBuffer(gl.ARRAY_BUFFER, colors);
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gl.enableVertexAttribArray(colorLocation);
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gl.vertexAttribPointer(colorLocation, 4, gl.FLOAT, false, 0, 0);
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}
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function checkDraw(colorLocation, positionLocation, r, g, b, a) {
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gl.clearColor(0, 0, 0, 1);
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gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
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gl.drawArrays(gl.TRIANGLES, 0, 3);
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var buf = gl.readPixels(0, 0, 50, 50, gl.RGBA, gl.UNSIGNED_BYTE);
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function checkPixel(x, y, r, g, b, a) {
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var offset = (y * 50 + x) * 4;
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if (buf[offset + 0] != r ||
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buf[offset + 1] != g ||
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buf[offset + 2] != b ||
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buf[offset + 3] != a) {
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fail(x, y, buf, "(" + r + "," + g + "," + b + "," + a + ")");
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return false;
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}
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return true;
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}
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// Test several locations
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// First line should be all black
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var success = true;
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for (var i = 0; i < 50; ++i) {
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success = success && checkPixel(i, 0, 0, 0, 0, 255);
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}
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// Line 15 should be red for at least 10 rgba pixels starting 20 pixels in
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var offset = (15 * 50 + 20) * 4;
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for (var i = 0; i < 10; ++i) {
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success = success && checkPixel(20 + i, 15, r, g, b, a);
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}
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// Last line should be all black
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for (var i = 0; i < 50; ++i) {
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success = success && checkPixel(i, 49, 0, 0, 0, 255);
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}
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if (success) {
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pass();
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}
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gl.disableVertexAttribArray(positionLocation);
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gl.disableVertexAttribArray(colorLocation);
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}
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setBindLocations(2, 3);
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checkDraw(2, 3, 0, 255, 0, 255);
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setBindLocations(0, 3);
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gl.disableVertexAttribArray(0);
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gl.vertexAttrib4f(0, 1, 0, 0, 1);
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checkDraw(0, 3, 255, 0, 0, 255);
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shouldBe("gl.getError()", "gl.NO_ERROR");
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}
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debug("");
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successfullyParsed = true;
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</script>
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<script src="../resources/js-test-post.js"></script>
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<script>
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</script>
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</body>
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</html>
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