diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/canvas/test/webgl-conf/checkout/conformance/rendering/negative-one-index.html | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/rendering/negative-one-index.html')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/rendering/negative-one-index.html | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/rendering/negative-one-index.html b/dom/canvas/test/webgl-conf/checkout/conformance/rendering/negative-one-index.html new file mode 100644 index 0000000000..69a59940a8 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/rendering/negative-one-index.html @@ -0,0 +1,98 @@ +<!-- +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>-1 Index Rendering 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> +</head> +<body> +<canvas id="example" width="50" height="50"> +</canvas> +<div id="description"></div> +<div id="console"></div> +<script id="vshader" type="x-shader/x-vertex"> +attribute vec4 vPosition; +void main() +{ + gl_Position = vPosition; +} +</script> + +<script id="fshader" type="x-shader/x-fragment"> +void main() +{ + gl_FragColor = vec4(0.0,1.0,0.0,1.0); +} +</script> + +<script> +"use strict"; +function init() +{ + description(document.title); + + var wtu = WebGLTestUtils; + var gl = wtu.create3DContext("example"); + var contextVersion = wtu.getDefault3DContextVersion(); + var program = wtu.setupProgram(gl, ["vshader", "fshader"], ["vPosition"]); + + var vertexObject = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); + var vertexData = new Float32Array(65536 * 3); + vertexData[0 * 3 + 0] = 0.0; + vertexData[0 * 3 + 1] = 0.5; + vertexData[0 * 3 + 2] = 0.0; + vertexData[1 * 3 + 0] = -0.5; + vertexData[1 * 3 + 1] = -0.5; + vertexData[1 * 3 + 2] = 0.0; + vertexData[65535 * 3 + 0] = 0.5; + vertexData[65535 * 3 + 1] = -0.5; + vertexData[65535 * 3 + 2] = 0.0; + gl.bufferData(gl.ARRAY_BUFFER, vertexData, gl.STATIC_DRAW); + gl.enableVertexAttribArray(0); + gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0); + + var indices = new Uint16Array([0, 1, -1]); + var indexBuffer = gl.createBuffer(); + gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer); + gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, indices, gl.STATIC_DRAW); + + gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); + gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0); + + if (contextVersion <= 1) { + // This should render a green triangle in the middle of the canvas. + // Some implementations may incorrectly interpret the -1 index as + // a primitive restart and not render anything. + + // Test several locations + // First line should be all black + wtu.checkCanvasRect(gl, 0, 0, 50, 1, [0, 0, 0, 0]); + + // Line 15 should be green for at least 10 pixels starting from row 20 + wtu.checkCanvasRect(gl, 20, 15, 10, 1, [0, 255, 0, 255]); + + // Last line should be all black + wtu.checkCanvasRect(gl, 0, 49, 50, 1, [0, 0, 0, 0]); + } else { + // For WebGL 2, PRIMITIVE_RESTART_FIXED_INDEX is always enabled. + // Nothing should be drawn on the canvas. + wtu.checkCanvasRect(gl, 0, 0, 50, 50, [0, 0, 0, 0]); + } +} + +init(); +var successfullyParsed = true; +</script> +<script src="../../js/js-test-post.js"></script> + +</body> +</html> |