| Index: conformance/canvas/viewport-unchanged-upon-resize.html
|
| ===================================================================
|
| --- conformance/canvas/viewport-unchanged-upon-resize.html (revision 0)
|
| +++ conformance/canvas/viewport-unchanged-upon-resize.html (revision 0)
|
| @@ -0,0 +1,112 @@
|
| +<!--
|
| +Copyright (c) 2011 The Chromium Authors. All rights reserved.
|
| +Use of this source code is governed by a BSD-style license that can be
|
| +found in the LICENSE file.
|
| + -->
|
| +<html>
|
| +<head>
|
| +<meta charset="utf-8">
|
| +<link rel="stylesheet" href="../../resources/js-test-style.css"/>
|
| +<script src="../../resources/js-test-pre.js"></script>
|
| +<script src="../resources/webgl-test.js"></script>
|
| +<script id="vshader" type="x-shader/x-vertex">
|
| +attribute vec3 g_Position;
|
| +
|
| +void main()
|
| +{
|
| + gl_Position = vec4(g_Position.x, g_Position.y, g_Position.z, 1.0);
|
| +}
|
| +</script>
|
| +
|
| +<script id="fshader" type="x-shader/x-fragment">
|
| +void main()
|
| +{
|
| + gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
|
| +}
|
| +</script>
|
| +
|
| +</head>
|
| +<body>
|
| +<canvas id="example" width="4px" height="4px"></canvas>
|
| +<div id="description"></div>
|
| +<div id="console"></div>
|
| +<script>
|
| +description('Verifies that GL viewport does not change when canvas is resized');
|
| +
|
| +var err;
|
| +var gl = initWebGL("example", "vshader", "fshader", [ "g_Position" ], [ 0, 0, 1, 1 ], 1);
|
| +
|
| +var vertices = new Float32Array([
|
| + 1.0, 1.0, 0.0,
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| + -1.0, 1.0, 0.0,
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| + -1.0, -1.0, 0.0,
|
| + 1.0, 1.0, 0.0,
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| + -1.0, -1.0, 0.0,
|
| + 1.0, -1.0, 0.0]);
|
| +var vbo = gl.createBuffer();
|
| +gl.bindBuffer(gl.ARRAY_BUFFER, vbo);
|
| +gl.bufferData(gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW);
|
| +
|
| +gl.enableVertexAttribArray(0);
|
| +gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0);
|
| +
|
| +// Clear and set up
|
| +gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
|
| +gl.useProgram(gl.program);
|
| +// Draw the triangle pair to the frame buffer
|
| +gl.drawArrays(gl.TRIANGLES, 0, 6);
|
| +
|
| +// Ensure that the frame buffer is red at the sampled pixel
|
| +var buf = new Uint8Array(1 * 1 * 4);
|
| +gl.readPixels(2, 2, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, buf);
|
| +var passed = true;
|
| +if (buf[0] != 255 ||
|
| + buf[1] != 0 ||
|
| + buf[2] != 0 ||
|
| + buf[3] != 255) {
|
| + testFailed("Pixel at (2, 2) should have been (255, 0, 0, 255), " +
|
| + "was (" + buf[0] + ", " + buf[1] + ", " + buf[2] + ", " + buf[3] + ")");
|
| + passed = false;
|
| +}
|
| +
|
| +if (passed) {
|
| + // Now resize the canvas
|
| + glErrorShouldBe(gl, gl.NO_ERROR, "No GL errors before resizing the canvas");
|
| + var canvas = document.getElementById("example");
|
| + canvas.width = 8;
|
| + canvas.height = 8;
|
| + err = gl.getError();
|
| + // Some implementations might lost the context when resizing
|
| + if (err == gl.CONTEXT_LOST_WEBGL) {
|
| + testPassed("canvas lost context on resize");
|
| + } else {
|
| + shouldBe("err", "gl.NO_ERROR");
|
| + // Do another render
|
| + gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
|
| + gl.drawArrays(gl.TRIANGLES, 0, 6);
|
| + // This time, because we did not change the viewport, it should
|
| + // still be (0, 0, 4, 4), so only the lower-left quadrant should
|
| + // have been filled.
|
| + var buf = new Uint8Array(1 * 1 * 4);
|
| + gl.readPixels(6, 6, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, buf);
|
| + var passed = true;
|
| + if (buf[0] != 0 ||
|
| + buf[1] != 0 ||
|
| + buf[2] != 255 ||
|
| + buf[3] != 255) {
|
| + testFailed("Pixel at (6, 6) should have been (0, 0, 255, 255), " +
|
| + "was (" + buf[0] + ", " + buf[1] + ", " + buf[2] + ", " + buf[3] + ")");
|
| + passed = false;
|
| + }
|
| + if (passed) {
|
| + testPassed("Viewport correctly did not change size during canvas resize");
|
| + }
|
| + }
|
| +}
|
| +
|
| +successfullyParsed = true;
|
| +</script>
|
| +<script src="../../resources/js-test-post.js"></script>
|
| +</body>
|
| +</html>
|
| +
|
|
|
| Property changes on: conformance/canvas/viewport-unchanged-upon-resize.html
|
| ___________________________________________________________________
|
| Added: svn:eol-style
|
| + LF
|
|
|
|
|
Chromium Code Reviews
Issue 8342021:
Add webgl conformance tests r15841. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/webgl/sdk/tests/