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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/185172">185172</a></dd>
<dt>Author</dt> <dd>dino@apple.com</dd>
<dt>Date</dt> <dd>2015-06-03 15:32:40 -0700 (Wed, 03 Jun 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>Crash in GraphicsContext3D::getInternalFramebufferSize
https://bugs.webkit.org/show_bug.cgi?id=145479
<rdar://problem/16461048>
Reviewed by Eric Carlson.
Source/WebCore:
If we are in an unitialized or lost state, don't try to access the context.
In order to test this, I added an Internal setting that always
forces WebGL into a pending state.
Test: fast/canvas/webgl/useWhilePending.html
* html/canvas/WebGLRenderingContextBase.cpp:
(WebCore::WebGLRenderingContextBase::create): Check internal settings for
a forced pending state.
(WebCore::WebGLRenderingContextBase::drawingBufferWidth): Guard against a pending state.
(WebCore::WebGLRenderingContextBase::drawingBufferHeight): Ditto.
* page/Settings.cpp: New Internal setting for forcing a pending policy.
(WebCore::Settings::Settings):
(WebCore::Settings::setForcePendingWebGLPolicy):
* page/Settings.h:
(WebCore::Settings::isForcePendingWebGLPolicy):
* testing/InternalSettings.cpp:
(WebCore::InternalSettings::Backup::Backup):
(WebCore::InternalSettings::Backup::restoreTo):
(WebCore::InternalSettings::setForcePendingWebGLPolicy):
* testing/InternalSettings.h:
* testing/InternalSettings.idl:
LayoutTests:
Attemps to use a WebGL context while it is in the pending state.
* fast/canvas/webgl/useWhilePending-expected.txt: Added.
* fast/canvas/webgl/useWhilePending.html: Added.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCorehtmlcanvasWebGLRenderingContextBasecpp">trunk/Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp</a></li>
<li><a href="#trunkSourceWebCorepageSettingscpp">trunk/Source/WebCore/page/Settings.cpp</a></li>
<li><a href="#trunkSourceWebCorepageSettingsh">trunk/Source/WebCore/page/Settings.h</a></li>
<li><a href="#trunkSourceWebCoretestingInternalSettingscpp">trunk/Source/WebCore/testing/InternalSettings.cpp</a></li>
<li><a href="#trunkSourceWebCoretestingInternalSettingsh">trunk/Source/WebCore/testing/InternalSettings.h</a></li>
<li><a href="#trunkSourceWebCoretestingInternalSettingsidl">trunk/Source/WebCore/testing/InternalSettings.idl</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsfastcanvaswebgluseWhilePendingexpectedtxt">trunk/LayoutTests/fast/canvas/webgl/useWhilePending-expected.txt</a></li>
<li><a href="#trunkLayoutTestsfastcanvaswebgluseWhilePendinghtml">trunk/LayoutTests/fast/canvas/webgl/useWhilePending.html</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (185171 => 185172)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog 2015-06-03 22:29:38 UTC (rev 185171)
+++ trunk/LayoutTests/ChangeLog 2015-06-03 22:32:40 UTC (rev 185172)
</span><span class="lines">@@ -1,3 +1,16 @@
</span><ins>+2015-06-03 Dean Jackson <dino@apple.com>
+
+ Crash in GraphicsContext3D::getInternalFramebufferSize
+ https://bugs.webkit.org/show_bug.cgi?id=145479
+ <rdar://problem/16461048>
+
+ Reviewed by Eric Carlson.
+
+ Attemps to use a WebGL context while it is in the pending state.
+
+ * fast/canvas/webgl/useWhilePending-expected.txt: Added.
+ * fast/canvas/webgl/useWhilePending.html: Added.
+
</ins><span class="cx"> 2015-06-03 Daniel Bates <dabates@apple.com>
</span><span class="cx">
</span><span class="cx"> AutoFill button should not be shown in read-only or disabled field
</span></span></pre></div>
<a id="trunkLayoutTestsfastcanvaswebgluseWhilePendingexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/canvas/webgl/useWhilePending-expected.txt (0 => 185172)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/canvas/webgl/useWhilePending-expected.txt (rev 0)
+++ trunk/LayoutTests/fast/canvas/webgl/useWhilePending-expected.txt 2015-06-03 22:32:40 UTC (rev 185172)
</span><span class="lines">@@ -0,0 +1 @@
</span><ins>+Should not crash.
</ins><span class="cx">Property changes on: trunk/LayoutTests/fast/canvas/webgl/useWhilePending-expected.txt
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
<a id="svnmimetype"></a>
<div class="addfile"><h4>Added: svn:mime-type</h4></div>
<a id="svnkeywords"></a>
<div class="addfile"><h4>Added: svn:keywords</h4></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4>Added: svn:eol-style</h4></div>
<a id="trunkLayoutTestsfastcanvaswebgluseWhilePendinghtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/canvas/webgl/useWhilePending.html (0 => 185172)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/canvas/webgl/useWhilePending.html (rev 0)
+++ trunk/LayoutTests/fast/canvas/webgl/useWhilePending.html 2015-06-03 22:32:40 UTC (rev 185172)
</span><span class="lines">@@ -0,0 +1,23 @@
</span><ins>+<script>
+if (window.testRunner) {
+ window.internals.settings.setForcePendingWebGLPolicy(true);
+ testRunner.dumpAsText();
+ testRunner.waitUntilDone();
+}
+
+window.addEventListener("load", function () {
+
+ var canvas = document.createElement("canvas");
+ canvas.width = 100;
+ canvas.height = 100;
+ var gl = canvas.getContext("webgl");
+ var foo = gl.drawingBufferWidth;
+ foo = gl.drawingBufferHeight;
+
+ if (window.testRunner)
+ testRunner.notifyDone();
+
+}, false);
+</script>
+
+Should not crash.
</ins><span class="cx">Property changes on: trunk/LayoutTests/fast/canvas/webgl/useWhilePending.html
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
<a id="svnmimetype"></a>
<div class="addfile"><h4>Added: svn:mime-type</h4></div>
<a id="svnkeywords"></a>
<div class="addfile"><h4>Added: svn:keywords</h4></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4>Added: svn:eol-style</h4></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (185171 => 185172)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2015-06-03 22:29:38 UTC (rev 185171)
+++ trunk/Source/WebCore/ChangeLog 2015-06-03 22:32:40 UTC (rev 185172)
</span><span class="lines">@@ -1,3 +1,35 @@
</span><ins>+2015-06-03 Dean Jackson <dino@apple.com>
+
+ Crash in GraphicsContext3D::getInternalFramebufferSize
+ https://bugs.webkit.org/show_bug.cgi?id=145479
+ <rdar://problem/16461048>
+
+ Reviewed by Eric Carlson.
+
+ If we are in an unitialized or lost state, don't try to access the context.
+
+ In order to test this, I added an Internal setting that always
+ forces WebGL into a pending state.
+
+ Test: fast/canvas/webgl/useWhilePending.html
+
+ * html/canvas/WebGLRenderingContextBase.cpp:
+ (WebCore::WebGLRenderingContextBase::create): Check internal settings for
+ a forced pending state.
+ (WebCore::WebGLRenderingContextBase::drawingBufferWidth): Guard against a pending state.
+ (WebCore::WebGLRenderingContextBase::drawingBufferHeight): Ditto.
+ * page/Settings.cpp: New Internal setting for forcing a pending policy.
+ (WebCore::Settings::Settings):
+ (WebCore::Settings::setForcePendingWebGLPolicy):
+ * page/Settings.h:
+ (WebCore::Settings::isForcePendingWebGLPolicy):
+ * testing/InternalSettings.cpp:
+ (WebCore::InternalSettings::Backup::Backup):
+ (WebCore::InternalSettings::Backup::restoreTo):
+ (WebCore::InternalSettings::setForcePendingWebGLPolicy):
+ * testing/InternalSettings.h:
+ * testing/InternalSettings.idl:
+
</ins><span class="cx"> 2015-06-03 Hunseop Jeong <hs85.jeong@samsung.com>
</span><span class="cx">
</span><span class="cx"> Use modern for-loops in WebCore/page.
</span></span></pre></div>
<a id="trunkSourceWebCorehtmlcanvasWebGLRenderingContextBasecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp (185171 => 185172)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp 2015-06-03 22:29:38 UTC (rev 185171)
+++ trunk/Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp 2015-06-03 22:32:40 UTC (rev 185172)
</span><span class="lines">@@ -362,9 +362,11 @@
</span><span class="cx"> bool isPendingPolicyResolution = false;
</span><span class="cx"> Document& topDocument = document.topDocument();
</span><span class="cx"> Page* page = topDocument.page();
</span><del>- if (page && !topDocument.url().isLocalFile()) {
- WebGLLoadPolicy policy = page->mainFrame().loader().client().webGLPolicyForURL(topDocument.url());
</del><ins>+ bool forcingPendingPolicy = frame->settings().isForcePendingWebGLPolicy();
</ins><span class="cx">
</span><ins>+ if (forcingPendingPolicy || (page && !topDocument.url().isLocalFile())) {
+ WebGLLoadPolicy policy = forcingPendingPolicy ? WebGLPendingCreation : page->mainFrame().loader().client().webGLPolicyForURL(topDocument.url());
+
</ins><span class="cx"> if (policy == WebGLBlockCreation) {
</span><span class="cx"> LOG(WebGL, "The policy for this URL (%s) is to block WebGL.", topDocument.url().host().utf8().data());
</span><span class="cx"> return nullptr;
</span><span class="lines">@@ -400,6 +402,7 @@
</span><span class="cx"> renderingContext = std::unique_ptr<WebGL2RenderingContext>(new WebGL2RenderingContext(canvas, attributes));
</span><span class="cx"> else
</span><span class="cx"> renderingContext = std::unique_ptr<WebGLRenderingContext>(new WebGLRenderingContext(canvas, attributes));
</span><ins>+ renderingContext->suspendIfNeeded();
</ins><span class="cx"> return renderingContext;
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -779,11 +782,17 @@
</span><span class="cx">
</span><span class="cx"> int WebGLRenderingContextBase::drawingBufferWidth() const
</span><span class="cx"> {
</span><ins>+ if (m_isPendingPolicyResolution && !m_hasRequestedPolicyResolution)
+ return 0;
+
</ins><span class="cx"> return m_context->getInternalFramebufferSize().width();
</span><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> int WebGLRenderingContextBase::drawingBufferHeight() const
</span><span class="cx"> {
</span><ins>+ if (m_isPendingPolicyResolution && !m_hasRequestedPolicyResolution)
+ return 0;
+
</ins><span class="cx"> return m_context->getInternalFramebufferSize().height();
</span><span class="cx"> }
</span><span class="cx">
</span></span></pre></div>
<a id="trunkSourceWebCorepageSettingscpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/Settings.cpp (185171 => 185172)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/Settings.cpp 2015-06-03 22:29:38 UTC (rev 185171)
+++ trunk/Source/WebCore/page/Settings.cpp 2015-06-03 22:32:40 UTC (rev 185172)
</span><span class="lines">@@ -201,6 +201,7 @@
</span><span class="cx"> #endif
</span><span class="cx"> , m_hiddenPageCSSAnimationSuspensionEnabled(false)
</span><span class="cx"> , m_fontFallbackPrefersPictographs(false)
</span><ins>+ , m_forcePendingWebGLPolicy(false)
</ins><span class="cx"> {
</span><span class="cx"> // A Frame may not have been created yet, so we initialize the AtomicString
</span><span class="cx"> // hash before trying to use it.
</span><span class="lines">@@ -424,6 +425,11 @@
</span><span class="cx"> m_setImageLoadingSettingsTimer.startOneShot(0);
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+void Settings::setForcePendingWebGLPolicy(bool forced)
+{
+ m_forcePendingWebGLPolicy = forced;
+}
+
</ins><span class="cx"> void Settings::setPluginsEnabled(bool arePluginsEnabled)
</span><span class="cx"> {
</span><span class="cx"> if (m_arePluginsEnabled == arePluginsEnabled)
</span></span></pre></div>
<a id="trunkSourceWebCorepageSettingsh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/Settings.h (185171 => 185172)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/Settings.h 2015-06-03 22:29:38 UTC (rev 185171)
+++ trunk/Source/WebCore/page/Settings.h 2015-06-03 22:32:40 UTC (rev 185172)
</span><span class="lines">@@ -270,6 +270,9 @@
</span><span class="cx"> const String& mediaKeysStorageDirectory() const { return m_mediaKeysStorageDirectory; }
</span><span class="cx"> #endif
</span><span class="cx">
</span><ins>+ WEBCORE_EXPORT void setForcePendingWebGLPolicy(bool);
+ bool isForcePendingWebGLPolicy() const { return m_forcePendingWebGLPolicy; }
+
</ins><span class="cx"> private:
</span><span class="cx"> explicit Settings(Page*);
</span><span class="cx">
</span><span class="lines">@@ -323,6 +326,8 @@
</span><span class="cx"> bool m_hiddenPageCSSAnimationSuspensionEnabled : 1;
</span><span class="cx"> bool m_fontFallbackPrefersPictographs : 1;
</span><span class="cx">
</span><ins>+ bool m_forcePendingWebGLPolicy : 1;
+
</ins><span class="cx"> #if USE(AVFOUNDATION)
</span><span class="cx"> WEBCORE_EXPORT static bool gAVFoundationEnabled;
</span><span class="cx"> #endif
</span></span></pre></div>
<a id="trunkSourceWebCoretestingInternalSettingscpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/testing/InternalSettings.cpp (185171 => 185172)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/testing/InternalSettings.cpp 2015-06-03 22:29:38 UTC (rev 185171)
+++ trunk/Source/WebCore/testing/InternalSettings.cpp 2015-06-03 22:32:40 UTC (rev 185172)
</span><span class="lines">@@ -85,6 +85,7 @@
</span><span class="cx"> , m_shouldDisplayTextDescriptions(settings.shouldDisplayTextDescriptions())
</span><span class="cx"> #endif
</span><span class="cx"> , m_defaultVideoPosterURL(settings.defaultVideoPosterURL())
</span><ins>+ , m_forcePendingWebGLPolicy(settings.isForcePendingWebGLPolicy())
</ins><span class="cx"> , m_originalTimeWithoutMouseMovementBeforeHidingControls(settings.timeWithoutMouseMovementBeforeHidingControls())
</span><span class="cx"> , m_useLegacyBackgroundSizeShorthandBehavior(settings.useLegacyBackgroundSizeShorthandBehavior())
</span><span class="cx"> , m_autoscrollForDragAndDropEnabled(settings.autoscrollForDragAndDropEnabled())
</span><span class="lines">@@ -152,6 +153,7 @@
</span><span class="cx"> settings.setShouldDisplayTextDescriptions(m_shouldDisplayTextDescriptions);
</span><span class="cx"> #endif
</span><span class="cx"> settings.setDefaultVideoPosterURL(m_defaultVideoPosterURL);
</span><ins>+ settings.setForcePendingWebGLPolicy(m_forcePendingWebGLPolicy);
</ins><span class="cx"> settings.setTimeWithoutMouseMovementBeforeHidingControls(m_originalTimeWithoutMouseMovementBeforeHidingControls);
</span><span class="cx"> settings.setUseLegacyBackgroundSizeShorthandBehavior(m_useLegacyBackgroundSizeShorthandBehavior);
</span><span class="cx"> settings.setAutoscrollForDragAndDropEnabled(m_autoscrollForDragAndDropEnabled);
</span><span class="lines">@@ -210,6 +212,7 @@
</span><span class="cx"> {
</span><span class="cx"> page()->setPageScaleFactor(1, IntPoint(0, 0));
</span><span class="cx"> page()->setCanStartMedia(true);
</span><ins>+ page()->settings().setForcePendingWebGLPolicy(false);
</ins><span class="cx"> #if ENABLE(WIRELESS_PLAYBACK_TARGET)
</span><span class="cx"> m_page->settings().setAllowsAirPlayForMediaPlayback(false);
</span><span class="cx"> #endif
</span><span class="lines">@@ -468,6 +471,12 @@
</span><span class="cx"> settings()->setDefaultVideoPosterURL(url);
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+void InternalSettings::setForcePendingWebGLPolicy(bool forced, ExceptionCode& ec)
+{
+ InternalSettingsGuardForSettings();
+ settings()->setForcePendingWebGLPolicy(forced);
+}
+
</ins><span class="cx"> void InternalSettings::setTimeWithoutMouseMovementBeforeHidingControls(double time, ExceptionCode& ec)
</span><span class="cx"> {
</span><span class="cx"> InternalSettingsGuardForSettings();
</span></span></pre></div>
<a id="trunkSourceWebCoretestingInternalSettingsh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/testing/InternalSettings.h (185171 => 185172)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/testing/InternalSettings.h 2015-06-03 22:29:38 UTC (rev 185171)
+++ trunk/Source/WebCore/testing/InternalSettings.h 2015-06-03 22:32:40 UTC (rev 185172)
</span><span class="lines">@@ -83,6 +83,7 @@
</span><span class="cx"> bool m_shouldDisplayTextDescriptions;
</span><span class="cx"> #endif
</span><span class="cx"> String m_defaultVideoPosterURL;
</span><ins>+ bool m_forcePendingWebGLPolicy;
</ins><span class="cx"> bool m_originalTimeWithoutMouseMovementBeforeHidingControls;
</span><span class="cx"> bool m_useLegacyBackgroundSizeShorthandBehavior;
</span><span class="cx"> bool m_autoscrollForDragAndDropEnabled;
</span><span class="lines">@@ -134,6 +135,7 @@
</span><span class="cx"> void setImagesEnabled(bool, ExceptionCode&);
</span><span class="cx"> void setMinimumTimerInterval(double intervalInSeconds, ExceptionCode&);
</span><span class="cx"> void setDefaultVideoPosterURL(const String& url, ExceptionCode&);
</span><ins>+ void setForcePendingWebGLPolicy(bool, ExceptionCode&);
</ins><span class="cx"> void setTimeWithoutMouseMovementBeforeHidingControls(double time, ExceptionCode&);
</span><span class="cx"> void setUseLegacyBackgroundSizeShorthandBehavior(bool, ExceptionCode&);
</span><span class="cx"> void setAutoscrollForDragAndDropEnabled(bool, ExceptionCode&);
</span></span></pre></div>
<a id="trunkSourceWebCoretestingInternalSettingsidl"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/testing/InternalSettings.idl (185171 => 185172)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/testing/InternalSettings.idl 2015-06-03 22:29:38 UTC (rev 185171)
+++ trunk/Source/WebCore/testing/InternalSettings.idl 2015-06-03 22:32:40 UTC (rev 185172)
</span><span class="lines">@@ -1,5 +1,6 @@
</span><span class="cx"> /*
</span><span class="cx"> * Copyright (C) 2012 Google Inc. All rights reserved.
</span><ins>+ * Copyright (C) 2015 Apple Inc. All rights reserved.
</ins><span class="cx"> *
</span><span class="cx"> * Redistribution and use in source and binary forms, with or without
</span><span class="cx"> * modification, are permitted provided that the following conditions
</span><span class="lines">@@ -55,6 +56,8 @@
</span><span class="cx"> [RaisesException] void setMediaTypeOverride(DOMString mediaTypeOverride);
</span><span class="cx"> void setWirelessPlaybackDisabled(boolean available);
</span><span class="cx">
</span><ins>+ [RaisesException] void setForcePendingWebGLPolicy(boolean forced);
+
</ins><span class="cx"> void setPluginReplacementEnabled(boolean enabled);
</span><span class="cx">
</span><span class="cx"> // Editing, forms
</span></span></pre>
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