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Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance2/rendering/draw-buffers-dirty-state-bug.html')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance2/rendering/draw-buffers-dirty-state-bug.html | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance2/rendering/draw-buffers-dirty-state-bug.html b/dom/canvas/test/webgl-conf/checkout/conformance2/rendering/draw-buffers-dirty-state-bug.html new file mode 100644 index 0000000000..2b54d4c255 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance2/rendering/draw-buffers-dirty-state-bug.html @@ -0,0 +1,111 @@ +<!-- +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 Draw Buffers Dirty State Bug Conformance Tests</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> +</head> +<body> +<div id="description"></div> +<canvas id="canvas" width="64" height="64"> </canvas> +<div id="console"></div> +<script id="vshader" type="x-shader/x-vertex">#version 300 es +in vec4 a_position; +void main() { + gl_Position = a_position; +} +</script> +<script id="fshader" type="x-shader/x-fragment">#version 300 es +precision mediump float; + +out vec4 my_FragColor; +void main() { + my_FragColor = vec4(1, 0, 0, 1); +} +</script> +<script> +"use strict"; +description("This test verifies a bug in draw buffers dirty state management in Chrome (crbug.com/678153)."); + +debug(""); + +var wtu = WebGLTestUtils; +var canvas = document.getElementById("canvas"); +var gl = wtu.create3DContext(canvas, null, 2); + +if (!gl) { + testFailed("WebGL context does not exist"); +} else { + testPassed("WebGL context exists"); + + runTest(); + + debug(""); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors"); +} + +function runTest() { + debug(""); + + var program = wtu.setupProgram(gl, ["vshader", "fshader"], ["a_position"]); + wtu.setupUnitQuad(gl); + + var width = 2, height = 2; + + var colorTex = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, colorTex); + gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); + + var depthTex = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, depthTex); + gl.texImage2D(gl.TEXTURE_2D, 0, gl.DEPTH_COMPONENT24, width, height, 0, gl.DEPTH_COMPONENT, gl.UNSIGNED_INT, null); + + var fb = gl.createFramebuffer(); + gl.bindFramebuffer(gl.FRAMEBUFFER, fb); + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, colorTex, 0); + + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Setup should cause no GL errors"); + + wtu.clearAndDrawUnitQuad(gl); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Clear and draw should cause no GL errors"); + wtu.checkCanvasRect(gl, 0, 0, width, height, [255, 0, 0, 255], "should be red"); + + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.TEXTURE_2D, depthTex, 0); + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, null, 0); + + wtu.clearAndDrawUnitQuad(gl); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Clear and draw should cause no GL errors"); + + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.TEXTURE_2D, null, 0); + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, colorTex, 0); + + wtu.checkCanvasRect(gl, 0, 0, width, height, [255, 0, 0, 255], "should be red"); + + gl.clearColor(0.0, 1.0, 0.0, 1.0); + gl.clear(gl.COLOR_BUFFER_BIT); + // Previously in Chrome, switching around the attachments on a framebuffer + // affected a DrawBuffers cache that was maintained properly during draw + // calls, but not clears. + wtu.checkCanvasRect(gl, 0, 0, width, height, [0, 255, 0, 255], "should be green"); + + gl.deleteProgram(program); + gl.deleteFramebuffer(fb); + gl.deleteTexture(colorTex); + gl.deleteTexture(depthTex); +} + +debug(""); +var successfullyParsed = true; +</script> +<script src="../../js/js-test-post.js"></script> + +</body> +</html> |