| commit-queue@webkit.org | 1d217a2 | 2022-03-17 10:07:16 +0000 | [diff] [blame] | 1 | <!DOCTYPE html> |
| commit-queue@webkit.org | 9d7acfc | 2022-02-23 08:23:37 +0000 | [diff] [blame] | 2 | <html> |
| 3 | <head> |
| 4 | <meta charset="utf-8"> |
| 5 | <link rel="stylesheet" href="resources/webgl_test_files/resources/js-test-style.css"/> |
| 6 | <script src="resources/webgl_test_files/js/js-test-pre.js"></script> |
| 7 | <script src="resources/webgl_test_files/js/webgl-test-utils.js"></script> |
| 8 | </head> |
| 9 | <body onload="test()"> |
| 10 | <div id="description"></div> |
| 11 | <div id="console"></div> |
| 12 | <script> |
| 13 | "use strict"; |
| 14 | description("Test that WEBGL_lose_context functions do not crash after context has been lost."); |
| 15 | |
| 16 | var wtu = WebGLTestUtils; |
| 17 | var gl; |
| 18 | |
| 19 | async function waitForWebGLContextLost(canvas) |
| 20 | { |
| 21 | return new Promise((resolve, reject) => { |
| 22 | setTimeout(reject, 2000); |
| 23 | canvas.addEventListener("webglcontextlost", resolve, { once: true }); |
| 24 | }); |
| 25 | } |
| 26 | |
| 27 | function testDescription(subcase) { |
| 28 | return Object.keys(subcase).map((k) => `${k}: ${typeof subcase[k] === "function" ? subcase[k].name : subcase[k]}`).join(", "); |
| 29 | } |
| 30 | |
| 31 | async function runTest(subcase) |
| 32 | { |
| 33 | debug(`Running test: ${testDescription(subcase)}`); |
| 34 | const canvas = document.createElement("canvas"); |
| 35 | canvas.width = 1; |
| 36 | canvas.height = 1; |
| 37 | gl = wtu.create3DContext(canvas); |
| 38 | const WEBGL_lose_context = wtu.getExtensionWithKnownPrefixes(gl, "WEBGL_lose_context"); |
| 39 | if (!WEBGL_lose_context) { |
| 40 | debug("Could not find WEBGL_lose_context extension"); |
| 41 | return false; |
| 42 | } |
| 43 | |
| 44 | const webglcontextlost = waitForWebGLContextLost(canvas); |
| 45 | |
| 46 | if (subcase.loseMethod == "loseContext") |
| 47 | WEBGL_lose_context.loseContext(); |
| 48 | else if (subcase.loseMethod == "gpuStatusFailure") { |
| 49 | internals.simulateEventForWebGLContext("GPUStatusFailure", gl); |
| 50 | gl.clear(gl.COLOR_BUFFER_BIT); |
| 51 | } else if (subcase.loseMethod == "manyContexts") { |
| 52 | // This causes the older contexts to be lost, including the first one we created |
| 53 | // for testing. |
| 54 | for (let i = 0; i < 50; ++i) |
| 55 | document.createElement("canvas").getContext("webgl"); |
| 56 | } |
| 57 | |
| commit-queue@webkit.org | 9d7acfc | 2022-02-23 08:23:37 +0000 | [diff] [blame] | 58 | try { |
| 59 | await webglcontextlost; |
| 60 | testPassed("Got webglcontextlost."); |
| 61 | } catch (e) { |
| 62 | testFailed("Timed out waiting webglcontextlost."); |
| 63 | } |
| commit-queue@webkit.org | 1d217a2 | 2022-03-17 10:07:16 +0000 | [diff] [blame] | 64 | shouldBeTrue("gl.isContextLost()"); |
| 65 | shouldBe("gl.getError()", "gl.CONTEXT_LOST_WEBGL"); |
| 66 | shouldBe("gl.getError()", "gl.NO_ERROR"); |
| commit-queue@webkit.org | 9d7acfc | 2022-02-23 08:23:37 +0000 | [diff] [blame] | 67 | |
| 68 | if (subcase.testedMethod == "loseContext") |
| 69 | WEBGL_lose_context.loseContext(); |
| 70 | else if (subcase.testedMethod == "restoreContext") |
| 71 | WEBGL_lose_context.restoreContext(); |
| 72 | testPassed(`Did not crash on tested method ${subcase.testedMethod}.`); |
| 73 | } |
| 74 | |
| 75 | const loseMethods = ["loseContext", "manyContexts"]; |
| 76 | if (window.internals) |
| 77 | loseMethods.push("gpuStatusFailure"); |
| 78 | const testedMethods = ["loseContext", "restoreContext"]; |
| 79 | |
| 80 | const subcases = []; |
| 81 | for (const loseMethod of loseMethods) |
| 82 | for (const testedMethod of testedMethods) |
| 83 | subcases.push({loseMethod, testedMethod}); |
| 84 | |
| 85 | async function test() |
| 86 | { |
| 87 | for (let subcase of subcases) |
| 88 | await runTest(subcase); |
| 89 | finishTest(); |
| 90 | } |
| 91 | </script> |
| 92 | </body> |
| 93 | </html> |
