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| 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/extra/lots-of-polys-example.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/extra/lots-of-polys-example.html')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/extra/lots-of-polys-example.html | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/extra/lots-of-polys-example.html b/dom/canvas/test/webgl-conf/checkout/extra/lots-of-polys-example.html new file mode 100644 index 0000000000..1c4fe866f6 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/extra/lots-of-polys-example.html @@ -0,0 +1,89 @@ +<!-- +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 Lots of polygons example.</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="1024" height="1024" style="width: 40px; height: 40px;"> +</canvas> +<div id="description"></div> +<div id="console"></div> +<script> +"use strict"; +window.onload = init; +debug("Tests a WebGL program that draws a bunch of large polygons"); + +function init() { + if (confirm( + "After clicking OK your machine may become unresponsive or crash.")) { + main(); + } else { + debug("cancelled"); + } +} + +function main() { + var wtu = WebGLTestUtils; + var canvas = document.getElementById("example"); + canvas.addEventListener("webglcontextlost", function(e) { e.preventDefault(); }, false); + canvas.addEventListener("webglcontextrestored", function(e) { }, false); + + var gl = wtu.create3DContext(canvas); + var program = wtu.setupTexturedQuad(gl); + + assertMsg(gl.getError() == gl.NO_ERROR, "Should be no errors from setup."); + + var tex = gl.createTexture(); + gl.enable(gl.BLEND); + gl.disable(gl.DEPTH_TEST); + + wtu.fillTexture(gl, tex, 4096, 4096, [0, 192, 128, 255], 0); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after creating texture"); + + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after setting texture params"); + + var loc = gl.getUniformLocation(program, "tex"); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after getting tex locations"); + gl.uniform1i(loc, 0); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after setting tex uniform"); + + var numQuads = 100000; + var indexBuf = new ArrayBuffer(numQuads * 6); + var indices = new Uint8Array(indexBuf); + for (var ii = 0; ii < numQuads; ++ii) { + var offset = ii * 6; + indices[offset + 0] = 0; + indices[offset + 1] = 1; + indices[offset + 2] = 2; + indices[offset + 3] = 3; + indices[offset + 4] = 4; + indices[offset + 5] = 5; + } + var indexBuffer = gl.createBuffer(); + gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer); + gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, indices, gl.STATIC_DRAW); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after creating index buffer"); + gl.drawElements(gl.TRIANGLES, numQuads * 6, gl.UNSIGNED_BYTE, 0); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after drawing"); + + var successfullyParsed = true; +} +</script> +</body> +</html> + + |