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Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/rendering/gl-scissor-canvas-dimensions.html')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/rendering/gl-scissor-canvas-dimensions.html | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/rendering/gl-scissor-canvas-dimensions.html b/dom/canvas/test/webgl-conf/checkout/conformance/rendering/gl-scissor-canvas-dimensions.html new file mode 100644 index 0000000000..6e2f2baf30 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/rendering/gl-scissor-canvas-dimensions.html @@ -0,0 +1,78 @@ +<!-- +Copyright (c) 2019 The Khronos Group Inc. +Use of this source code is governed by an MIT-style license that can be +found in the LICENSE.txt file. +--> + +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<title>WebGL Scissor Canvas Dimensions Test</title> +<link rel="stylesheet" href="../../resources/js-test-style.css"/> +<script src="../../js/js-test-pre.js"></script> +<script src="../../js/webgl-test-utils.js"></script> +<style> +canvas { + border: 1px solid #000; + width: 64px; + height: 64px; +} +</style> +</head> +<body> +<canvas id="canvas1" width="16" height="16"> </canvas> +<canvas id="canvas2" width="16" height="16"> </canvas> +<div id="description"></div> +<div id="console"></div> +<script> +"use strict"; +description("Check that scissoring is initially disabled and that the scissor rect does not change when canvas size changes."); + +var wtu = WebGLTestUtils; + +function testInit(canvas, attribs) { + var gl = wtu.create3DContext(canvas, attribs); + if (!gl) { + testFailed("context does not exist"); + return; + } + debug("Testing that scissor test is initially disabled"); + // Setting the scissor rect should have no effect on drawing. + gl.scissor(0, 0, 1, 1); + gl.clearColor(0, 1, 0, 1); + gl.clear(gl.COLOR_BUFFER_BIT); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors"); + wtu.checkCanvasRect(gl, 0, 0, canvas.width, canvas.height, [0, 255, 0, 255], "whole canvas should be green"); +} + +function testCanvasSizeChange(canvas, attribs) { + var gl = wtu.create3DContext(canvas, attribs); + if (!gl) { + testFailed("context does not exist"); + return; + } + debug("Testing that scissor rect dimensions do not change if the canvas is resized."); + canvas.width = 32; + canvas.height = 32; + gl.viewport(0, 0, 32, 32); + gl.enable(gl.SCISSOR_TEST); + gl.clearColor(0, 1, 0, 1); + gl.clear(gl.COLOR_BUFFER_BIT); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors"); + wtu.checkCanvasRect(gl, 0, 0, 16, 16, [0, 255, 0, 255], "area inside scissor should be green"); + wtu.checkCanvasRect(gl, 0, 16, 32, 16, [0, 0, 0, 0], "area outside scissor should be black"); + wtu.checkCanvasRect(gl, 16, 0, 16, 16, [0, 0, 0, 0], "area outside scissor should be black"); +} + +testInit(document.getElementById("canvas1"), {antialias: false}); +debug(""); +testCanvasSizeChange(document.getElementById("canvas2"), {antialias: false}); + +var successfullyParsed = true; + +</script> +<script src="../../js/js-test-post.js"></script> + +</body> +</html> |