| OLD | NEW |
|---|
| (Empty) |
| 1 <!DOCTYPE html> | |
| 2 <html> | |
| 3 <head> | |
| 4 <script src="../../../resources/js-test.js"></script> | |
| 5 <script src="resources/webgl-test.js"></script> | |
| 6 <script src="resources/webgl-test-utils.js"></script> | |
| 7 <script> | |
| 8 if (window.internals) | |
| 9 window.internals.settings.setWebGLErrorsToConsoleEnabled(false); | |
| 10 | |
| 11 var wtu = WebGLTestUtils; | |
| 12 var canvas; | |
| 13 var gl; | |
| 14 var shouldGenerateGLError; | |
| 15 var extension; | |
| 16 var bufferObjects; | |
| 17 var program; | |
| 18 var texture; | |
| 19 var texColor = [255, 10, 20, 255]; | |
| 20 var allowRestore; | |
| 21 var contextLostEventFired; | |
| 22 var contextRestoredEventFired; | |
| 23 | |
| 24 function init() | |
| 25 { | |
| 26 if (window.initNonKhronosFramework) { | |
| 27 window.initNonKhronosFramework(true); | |
| 28 } | |
| 29 | |
| 30 description("Tests behavior under a restored context."); | |
| 31 | |
| 32 shouldGenerateGLError = wtu.shouldGenerateGLError; | |
| 33 testLosingContext(); | |
| 34 } | |
| 35 | |
| 36 function setupTest() | |
| 37 { | |
| 38 canvas = document.createElement("canvas"); | |
| 39 canvas.width = 1; | |
| 40 canvas.height = 1; | |
| 41 gl = wtu.create3DContext(canvas); | |
| 42 extension = gl.getExtension("WEBGL_lose_context"); | |
| 43 if (!extension) { | |
| 44 debug("Could not find lose_context extension under the following names:
WEBGL_lose_context"); | |
| 45 return false; | |
| 46 } | |
| 47 return true; | |
| 48 } | |
| 49 | |
| 50 function testLosingContext() | |
| 51 { | |
| 52 if (!setupTest()) | |
| 53 finishTest(); | |
| 54 | |
| 55 debug("Test losing a context and inability to restore it."); | |
| 56 | |
| 57 canvas.addEventListener("webglcontextlost", function(e) { | |
| 58 testLostContext(e); | |
| 59 // restore the context after this event has exited. | |
| 60 setTimeout(function() { | |
| 61 // we didn't call prevent default so we should not be able to restore t
he context | |
| 62 shouldGenerateGLError(gl, gl.INVALID_OPERATION, "extension.restoreConte
xt()"); | |
| 63 testLosingAndRestoringContext(); | |
| 64 }, 0); | |
| 65 }); | |
| 66 canvas.addEventListener("webglcontextrestored", testShouldNotRestoreContext)
; | |
| 67 allowRestore = false; | |
| 68 contextLostEventFired = false; | |
| 69 contextRestoredEventFired = false; | |
| 70 | |
| 71 testOriginalContext(); | |
| 72 extension.loseContext(); | |
| 73 // The context should be lost immediately. | |
| 74 shouldBeTrue("gl.isContextLost()"); | |
| 75 shouldBe("gl.getError()", "gl.CONTEXT_LOST_WEBGL"); | |
| 76 shouldBe("gl.getError()", "gl.NO_ERROR"); | |
| 77 // gl methods should be no-ops | |
| 78 shouldGenerateGLError(gl, gl.NO_ERROR, "gl.blendFunc(gl.TEXTURE_2D, gl.TEXTU
RE_CUBE_MAP)"); | |
| 79 // but the event should not have been fired. | |
| 80 shouldBeFalse("contextLostEventFired"); | |
| 81 } | |
| 82 | |
| 83 function testLosingAndRestoringContext() | |
| 84 { | |
| 85 if (!setupTest()) | |
| 86 finishTest(); | |
| 87 | |
| 88 debug(""); | |
| 89 debug("Test losing and restoring a context."); | |
| 90 | |
| 91 canvas.addEventListener("webglcontextlost", function(e) { | |
| 92 testLostContext(e); | |
| 93 // restore the context after this event has exited. | |
| 94 setTimeout(function() { | |
| 95 shouldGenerateGLError(gl, gl.NO_ERROR, "extension.restoreContext()"); | |
| 96 // The context should still be lost. It will not get restored until the | |
| 97 // webglrestorecontext event is fired. | |
| 98 shouldBeTrue("gl.isContextLost()"); | |
| 99 shouldBe("gl.getError()", "gl.NO_ERROR"); | |
| 100 // gl methods should still be no-ops | |
| 101 shouldGenerateGLError(gl, gl.NO_ERROR, "gl.blendFunc(gl.TEXTURE_2D, gl.T
EXTURE_CUBE_MAP)"); | |
| 102 }, 0); | |
| 103 }); | |
| 104 canvas.addEventListener("webglcontextrestored", function() { | |
| 105 testRestoredContext(); | |
| 106 finishTest(); | |
| 107 }); | |
| 108 allowRestore = true; | |
| 109 contextLostEventFired = false; | |
| 110 contextRestoredEventFired = false; | |
| 111 | |
| 112 testOriginalContext(); | |
| 113 extension.loseContext(); | |
| 114 // The context should be lost immediately. | |
| 115 shouldBeTrue("gl.isContextLost()"); | |
| 116 shouldBe("gl.getError()", "gl.CONTEXT_LOST_WEBGL"); | |
| 117 shouldBe("gl.getError()", "gl.NO_ERROR"); | |
| 118 // gl methods should be no-ops | |
| 119 shouldGenerateGLError(gl, gl.NO_ERROR, "gl.blendFunc(gl.TEXTURE_2D, gl.TEXTU
RE_CUBE_MAP)"); | |
| 120 // but the event should not have been fired. | |
| 121 shouldBeFalse("contextLostEventFired"); | |
| 122 } | |
| 123 | |
| 124 function testRendering() | |
| 125 { | |
| 126 gl.clearColor(0, 0, 0, 255); | |
| 127 gl.colorMask(1, 1, 1, 0); | |
| 128 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); | |
| 129 | |
| 130 program = wtu.setupSimpleTextureProgram(gl); | |
| 131 bufferObjects = wtu.setupUnitQuad(gl); | |
| 132 texture = wtu.createColoredTexture(gl, canvas.width, canvas.height, texColor
); | |
| 133 | |
| 134 gl.uniform1i(gl.getUniformLocation(program, "tex"), 0); | |
| 135 wtu.drawQuad(gl, [0, 0, 0, 255]); | |
| 136 | |
| 137 var compare = texColor.slice(0, 3); | |
| 138 wtu.checkCanvasRect(gl, 0, 0, canvas.width, canvas.height, compare, "shouldB
e " + compare); | |
| 139 | |
| 140 shouldBe("gl.getError()", "gl.NO_ERROR"); | |
| 141 } | |
| 142 | |
| 143 function testOriginalContext() | |
| 144 { | |
| 145 debug("Test valid context"); | |
| 146 shouldBeFalse("gl.isContextLost()"); | |
| 147 shouldBe("gl.getError()", "gl.NO_ERROR"); | |
| 148 testRendering(); | |
| 149 debug(""); | |
| 150 } | |
| 151 | |
| 152 function testLostContext(e) | |
| 153 { | |
| 154 debug("Test lost context"); | |
| 155 shouldBeFalse("contextLostEventFired"); | |
| 156 contextLostEventFired = true; | |
| 157 shouldBeTrue("gl.isContextLost()"); | |
| 158 shouldBe("gl.getError()", "gl.NO_ERROR"); | |
| 159 debug(""); | |
| 160 if (allowRestore) | |
| 161 e.preventDefault(); | |
| 162 } | |
| 163 | |
| 164 function testShouldNotRestoreContext(e) | |
| 165 { | |
| 166 testFailed("Should not restore the context unless preventDefault is called o
n the context lost event"); | |
| 167 debug(""); | |
| 168 } | |
| 169 | |
| 170 function testResources(expected) | |
| 171 { | |
| 172 var tests = [ | |
| 173 "gl.bindTexture(gl.TEXTURE_2D, texture)", | |
| 174 "gl.useProgram(program)", | |
| 175 "gl.bindBuffer(gl.ARRAY_BUFFER, bufferObjects[0])", | |
| 176 ]; | |
| 177 | |
| 178 for (var i = 0; i < tests.length; ++i) | |
| 179 shouldGenerateGLError(gl, expected, tests[i]); | |
| 180 } | |
| 181 | |
| 182 function testRestoredContext() | |
| 183 { | |
| 184 debug("Test restored context"); | |
| 185 shouldBeFalse("contextRestoredEventFired"); | |
| 186 contextRestoredEventFired = true; | |
| 187 shouldBeFalse("gl.isContextLost()"); | |
| 188 shouldBe("gl.getError()", "gl.NO_ERROR"); | |
| 189 | |
| 190 // Validate that using old resources fails. | |
| 191 testResources(gl.INVALID_OPERATION); | |
| 192 | |
| 193 testRendering(); | |
| 194 | |
| 195 // Validate new resources created in testRendering(). | |
| 196 testResources(gl.NO_ERROR); | |
| 197 debug(""); | |
| 198 } | |
| 199 | |
| 200 | |
| 201 </script> | |
| 202 </head> | |
| 203 <body onload="init()"> | |
| 204 <div id="description"></div> | |
| 205 <div id="console"></div> | |
| 206 </body> | |
| 207 </html> | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1601093008:
Remove duplicated WebGL layout tests. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master