<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>[204618] trunk</title>
</head>
<body>
<style type="text/css"><!--
#msg dl.meta { border: 1px #006 solid; background: #369; padding: 6px; color: #fff; }
#msg dl.meta dt { float: left; width: 6em; font-weight: bold; }
#msg dt:after { content:':';}
#msg dl, #msg dt, #msg ul, #msg li, #header, #footer, #logmsg { font-family: verdana,arial,helvetica,sans-serif; font-size: 10pt; }
#msg dl a { font-weight: bold}
#msg dl a:link { color:#fc3; }
#msg dl a:active { color:#ff0; }
#msg dl a:visited { color:#cc6; }
h3 { font-family: verdana,arial,helvetica,sans-serif; font-size: 10pt; font-weight: bold; }
#msg pre { overflow: auto; background: #ffc; border: 1px #fa0 solid; padding: 6px; }
#logmsg { background: #ffc; border: 1px #fa0 solid; padding: 1em 1em 0 1em; }
#logmsg p, #logmsg pre, #logmsg blockquote { margin: 0 0 1em 0; }
#logmsg p, #logmsg li, #logmsg dt, #logmsg dd { line-height: 14pt; }
#logmsg h1, #logmsg h2, #logmsg h3, #logmsg h4, #logmsg h5, #logmsg h6 { margin: .5em 0; }
#logmsg h1:first-child, #logmsg h2:first-child, #logmsg h3:first-child, #logmsg h4:first-child, #logmsg h5:first-child, #logmsg h6:first-child { margin-top: 0; }
#logmsg ul, #logmsg ol { padding: 0; list-style-position: inside; margin: 0 0 0 1em; }
#logmsg ul { text-indent: -1em; padding-left: 1em; }#logmsg ol { text-indent: -1.5em; padding-left: 1.5em; }
#logmsg > ul, #logmsg > ol { margin: 0 0 1em 0; }
#logmsg pre { background: #eee; padding: 1em; }
#logmsg blockquote { border: 1px solid #fa0; border-left-width: 10px; padding: 1em 1em 0 1em; background: white;}
#logmsg dl { margin: 0; }
#logmsg dt { font-weight: bold; }
#logmsg dd { margin: 0; padding: 0 0 0.5em 0; }
#logmsg dd:before { content:'\00bb';}
#logmsg table { border-spacing: 0px; border-collapse: collapse; border-top: 4px solid #fa0; border-bottom: 1px solid #fa0; background: #fff; }
#logmsg table th { text-align: left; font-weight: normal; padding: 0.2em 0.5em; border-top: 1px dotted #fa0; }
#logmsg table td { text-align: right; border-top: 1px dotted #fa0; padding: 0.2em 0.5em; }
#logmsg table thead th { text-align: center; border-bottom: 1px solid #fa0; }
#logmsg table th.Corner { text-align: left; }
#logmsg hr { border: none 0; border-top: 2px dashed #fa0; height: 1px; }
#header, #footer { color: #fff; background: #636; border: 1px #300 solid; padding: 6px; }
#patch { width: 100%; }
#patch h4 {font-family: verdana,arial,helvetica,sans-serif;font-size:10pt;padding:8px;background:#369;color:#fff;margin:0;}
#patch .propset h4, #patch .binary h4 {margin:0;}
#patch pre {padding:0;line-height:1.2em;margin:0;}
#patch .diff {width:100%;background:#eee;padding: 0 0 10px 0;overflow:auto;}
#patch .propset .diff, #patch .binary .diff {padding:10px 0;}
#patch span {display:block;padding:0 10px;}
#patch .modfile, #patch .addfile, #patch .delfile, #patch .propset, #patch .binary, #patch .copfile {border:1px solid #ccc;margin:10px 0;}
#patch ins {background:#dfd;text-decoration:none;display:block;padding:0 10px;}
#patch del {background:#fdd;text-decoration:none;display:block;padding:0 10px;}
#patch .lines, .info {color:#888;background:#fff;}
--></style>
<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/204618">204618</a></dd>
<dt>Author</dt> <dd>dino@apple.com</dd>
<dt>Date</dt> <dd>2016-08-18 17:50:36 -0700 (Thu, 18 Aug 2016)</dd>
</dl>
<h3>Log Message</h3>
<pre>Support passing preferLowPowerToHighPerformance and failIfMajorPerformanceCaveat
https://bugs.webkit.org/show_bug.cgi?id=160982
<rdar://problem/27915946>
Reviewed by Simon Fraser.
Source/WebCore:
Update WebGLContextAttributes to be compliant with the specification,
by adding preferLowPowerToHighPerformance and failIfMajorPerformanceCaveat.
They are not implemented yet, so asking the created context what
values it used should give the default.
Test: fast/canvas/webgl/context-creation-attributes.html
* html/canvas/WebGLContextAttributes.cpp:
(WebCore::WebGLContextAttributes::preferLowPowerToHighPerformance):
(WebCore::WebGLContextAttributes::setPreferLowPowerToHighPerformance):
(WebCore::WebGLContextAttributes::failIfMajorPerformanceCaveat):
(WebCore::WebGLContextAttributes::setFailIfMajorPerformanceCaveat):
* html/canvas/WebGLContextAttributes.h:
* html/canvas/WebGLContextAttributes.idl:
* html/canvas/WebGLRenderingContextBase.cpp:
(WebCore::WebGLRenderingContextBase::create): Deleted.
* platform/graphics/GraphicsContext3D.h:
(WebCore::GraphicsContext3D::Attributes::Attributes): Deleted.
LayoutTests:
Very simple test that creates some WebGL contexts with various
creation attributes and outputs the result.
* fast/canvas/webgl/context-creation-attributes-expected.txt: Added.
* fast/canvas/webgl/context-creation-attributes.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="#trunkSourceWebCorehtmlcanvasWebGLContextAttributescpp">trunk/Source/WebCore/html/canvas/WebGLContextAttributes.cpp</a></li>
<li><a href="#trunkSourceWebCorehtmlcanvasWebGLContextAttributesh">trunk/Source/WebCore/html/canvas/WebGLContextAttributes.h</a></li>
<li><a href="#trunkSourceWebCorehtmlcanvasWebGLContextAttributesidl">trunk/Source/WebCore/html/canvas/WebGLContextAttributes.idl</a></li>
<li><a href="#trunkSourceWebCorehtmlcanvasWebGLRenderingContextBasecpp">trunk/Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicsGraphicsContext3Dh">trunk/Source/WebCore/platform/graphics/GraphicsContext3D.h</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsfastcanvaswebglcontextcreationattributesexpectedtxt">trunk/LayoutTests/fast/canvas/webgl/context-creation-attributes-expected.txt</a></li>
<li><a href="#trunkLayoutTestsfastcanvaswebglcontextcreationattributeshtml">trunk/LayoutTests/fast/canvas/webgl/context-creation-attributes.html</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (204617 => 204618)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog 2016-08-19 00:12:27 UTC (rev 204617)
+++ trunk/LayoutTests/ChangeLog 2016-08-19 00:50:36 UTC (rev 204618)
</span><span class="lines">@@ -1,3 +1,17 @@
</span><ins>+2016-08-18 Dean Jackson <dino@apple.com>
+
+ Support passing preferLowPowerToHighPerformance and failIfMajorPerformanceCaveat
+ https://bugs.webkit.org/show_bug.cgi?id=160982
+ <rdar://problem/27915946>
+
+ Reviewed by Simon Fraser.
+
+ Very simple test that creates some WebGL contexts with various
+ creation attributes and outputs the result.
+
+ * fast/canvas/webgl/context-creation-attributes-expected.txt: Added.
+ * fast/canvas/webgl/context-creation-attributes.html: Added.
+
</ins><span class="cx"> 2016-08-17 Ryosuke Niwa <rniwa@webkit.org>
</span><span class="cx">
</span><span class="cx"> Add basic support for connected and disconnected callbacks
</span></span></pre></div>
<a id="trunkLayoutTestsfastcanvaswebglcontextcreationattributesexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/canvas/webgl/context-creation-attributes-expected.txt (0 => 204618)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/canvas/webgl/context-creation-attributes-expected.txt (rev 0)
+++ trunk/LayoutTests/fast/canvas/webgl/context-creation-attributes-expected.txt 2016-08-19 00:50:36 UTC (rev 204618)
</span><span class="lines">@@ -0,0 +1,6 @@
</span><ins>+Note that some of the values tested here might not be supported, and thus should return the default values.
+
+{"alpha":true,"depth":true,"stencil":false,"antialias":true,"premultipliedAlpha":true,"preserveDrawingBuffer":false,"preferLowPowerToHighPerformance":false,"failIfMajorPerformanceCaveat":false}
+{"alpha":true,"depth":true,"stencil":true,"antialias":true,"premultipliedAlpha":true,"preserveDrawingBuffer":false,"preferLowPowerToHighPerformance":false,"failIfMajorPerformanceCaveat":false}
+{"alpha":true,"depth":true,"stencil":false,"antialias":true,"premultipliedAlpha":true,"preserveDrawingBuffer":false,"preferLowPowerToHighPerformance":false,"failIfMajorPerformanceCaveat":false}
+{"alpha":true,"depth":true,"stencil":false,"antialias":true,"premultipliedAlpha":true,"preserveDrawingBuffer":false,"preferLowPowerToHighPerformance":false,"failIfMajorPerformanceCaveat":false}
</ins><span class="cx">Property changes on: trunk/LayoutTests/fast/canvas/webgl/context-creation-attributes-expected.txt
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4>Added: svn:eol-style</h4></div>
<ins>+native
</ins><span class="cx">\ No newline at end of property
</span><a id="svnkeywords"></a>
<div class="addfile"><h4>Added: svn:keywords</h4></div>
<ins>+Date Revision
</ins><span class="cx">\ No newline at end of property
</span><a id="svnmimetype"></a>
<div class="addfile"><h4>Added: svn:mime-type</h4></div>
<ins>+text/plain
</ins><span class="cx">\ No newline at end of property
</span><a id="trunkLayoutTestsfastcanvaswebglcontextcreationattributeshtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/canvas/webgl/context-creation-attributes.html (0 => 204618)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/canvas/webgl/context-creation-attributes.html (rev 0)
+++ trunk/LayoutTests/fast/canvas/webgl/context-creation-attributes.html 2016-08-19 00:50:36 UTC (rev 204618)
</span><span class="lines">@@ -0,0 +1,38 @@
</span><ins>+<script>
+if (window.testRunner)
+ window.testRunner.dumpAsText();
+
+function describe(object) {
+ result = {};
+ if (typeof object === "function")
+ object = object.prototype;
+ for (let o = object; o; o = o.__proto__) {
+ for (let name of Object.getOwnPropertyNames(o)) {
+ result[name] = object[name];
+ }
+ }
+ return result;
+}
+
+function testContextCreation(parameters)
+{
+ var canvas = document.createElement("canvas");
+ var gl = canvas.getContext("webgl", parameters || {});
+ var attributes = gl.getContextAttributes();
+ var result = document.createElement("pre");
+ result.textContent = JSON.stringify(describe(attributes));
+ document.body.appendChild(result);
+}
+
+function run() {
+ testContextCreation({});
+ testContextCreation({stencil: true});
+ testContextCreation({preferLowPowerToHighPerformance: true});
+ testContextCreation({failIfMajorPerformanceCaveat: true});
+}
+
+window.addEventListener("load", run, false);
+</script>
+<p>
+ Note that some of the values tested here might not be supported, and thus should return the default values.
+</p>
</ins><span class="cx">\ No newline at end of file
</span><span class="cx">Property changes on: trunk/LayoutTests/fast/canvas/webgl/context-creation-attributes.html
</span><span class="cx">___________________________________________________________________
</span></span></pre></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4>Added: svn:eol-style</h4></div>
<ins>+native
</ins><span class="cx">\ No newline at end of property
</span><a id="svnkeywords"></a>
<div class="addfile"><h4>Added: svn:keywords</h4></div>
<ins>+Date Revision
</ins><span class="cx">\ No newline at end of property
</span><a id="svnmimetype"></a>
<div class="addfile"><h4>Added: svn:mime-type</h4></div>
<ins>+text/html
</ins><span class="cx">\ No newline at end of property
</span><a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (204617 => 204618)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2016-08-19 00:12:27 UTC (rev 204617)
+++ trunk/Source/WebCore/ChangeLog 2016-08-19 00:50:36 UTC (rev 204618)
</span><span class="lines">@@ -1,3 +1,30 @@
</span><ins>+2016-08-18 Dean Jackson <dino@apple.com>
+
+ Support passing preferLowPowerToHighPerformance and failIfMajorPerformanceCaveat
+ https://bugs.webkit.org/show_bug.cgi?id=160982
+ <rdar://problem/27915946>
+
+ Reviewed by Simon Fraser.
+
+ Update WebGLContextAttributes to be compliant with the specification,
+ by adding preferLowPowerToHighPerformance and failIfMajorPerformanceCaveat.
+ They are not implemented yet, so asking the created context what
+ values it used should give the default.
+
+ Test: fast/canvas/webgl/context-creation-attributes.html
+
+ * html/canvas/WebGLContextAttributes.cpp:
+ (WebCore::WebGLContextAttributes::preferLowPowerToHighPerformance):
+ (WebCore::WebGLContextAttributes::setPreferLowPowerToHighPerformance):
+ (WebCore::WebGLContextAttributes::failIfMajorPerformanceCaveat):
+ (WebCore::WebGLContextAttributes::setFailIfMajorPerformanceCaveat):
+ * html/canvas/WebGLContextAttributes.h:
+ * html/canvas/WebGLContextAttributes.idl:
+ * html/canvas/WebGLRenderingContextBase.cpp:
+ (WebCore::WebGLRenderingContextBase::create): Deleted.
+ * platform/graphics/GraphicsContext3D.h:
+ (WebCore::GraphicsContext3D::Attributes::Attributes): Deleted.
+
</ins><span class="cx"> 2016-08-18 Anders Carlsson <andersca@apple.com>
</span><span class="cx">
</span><span class="cx"> Move an NPAPI-only function from WebCore to WebKit
</span></span></pre></div>
<a id="trunkSourceWebCorehtmlcanvasWebGLContextAttributescpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/html/canvas/WebGLContextAttributes.cpp (204617 => 204618)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/html/canvas/WebGLContextAttributes.cpp 2016-08-19 00:12:27 UTC (rev 204617)
+++ trunk/Source/WebCore/html/canvas/WebGLContextAttributes.cpp 2016-08-19 00:50:36 UTC (rev 204618)
</span><span class="lines">@@ -117,6 +117,26 @@
</span><span class="cx"> m_attrs.preserveDrawingBuffer = preserveDrawingBuffer;
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+bool WebGLContextAttributes::preferLowPowerToHighPerformance() const
+{
+ return m_attrs.preferLowPowerToHighPerformance;
+}
+
+void WebGLContextAttributes::setPreferLowPowerToHighPerformance(bool preferLowPower)
+{
+ m_attrs.preferLowPowerToHighPerformance = preferLowPower;
+}
+
+bool WebGLContextAttributes::failIfMajorPerformanceCaveat() const
+{
+ return m_attrs.failIfMajorPerformanceCaveat;
+}
+
+void WebGLContextAttributes::setFailIfMajorPerformanceCaveat(bool fail)
+{
+ m_attrs.failIfMajorPerformanceCaveat = fail;
+}
+
</ins><span class="cx"> GraphicsContext3D::Attributes WebGLContextAttributes::attributes() const
</span><span class="cx"> {
</span><span class="cx"> return m_attrs;
</span></span></pre></div>
<a id="trunkSourceWebCorehtmlcanvasWebGLContextAttributesh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/html/canvas/WebGLContextAttributes.h (204617 => 204618)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/html/canvas/WebGLContextAttributes.h 2016-08-19 00:12:27 UTC (rev 204617)
+++ trunk/Source/WebCore/html/canvas/WebGLContextAttributes.h 2016-08-19 00:50:36 UTC (rev 204618)
</span><span class="lines">@@ -42,33 +42,43 @@
</span><span class="cx"> // Create a new attributes object initialized with preexisting attributes
</span><span class="cx"> static Ref<WebGLContextAttributes> create(GraphicsContext3D::Attributes);
</span><span class="cx">
</span><del>- // Whether or not the drawing buffer has an alpha channel; default=true
</del><ins>+ // Whether or not the drawing buffer has an alpha channel. Default is true.
</ins><span class="cx"> bool alpha() const;
</span><span class="cx"> void setAlpha(bool alpha);
</span><span class="cx">
</span><del>- // Whether or not the drawing buffer has a depth buffer; default=true
</del><ins>+ // Whether or not the drawing buffer has a depth buffer. Default is true.
</ins><span class="cx"> bool depth() const;
</span><span class="cx"> void setDepth(bool depth);
</span><span class="cx">
</span><del>- // Whether or not the drawing buffer has a stencil buffer; default=true
</del><ins>+ // Whether or not the drawing buffer has a stencil buffer. Default is true.
</ins><span class="cx"> bool stencil() const;
</span><span class="cx"> void setStencil(bool stencil);
</span><span class="cx">
</span><del>- // Whether or not the drawing buffer is antialiased; default=true
</del><ins>+ // Whether or not the drawing buffer is antialiased. Default is true.
</ins><span class="cx"> bool antialias() const;
</span><span class="cx"> void setAntialias(bool antialias);
</span><span class="cx">
</span><span class="cx"> // Whether or not to treat the values in the drawing buffer as
</span><span class="cx"> // though their alpha channel has already been multiplied into the
</span><del>- // color channels; default=true
</del><ins>+ // color channels. Default is true.
</ins><span class="cx"> bool premultipliedAlpha() const;
</span><span class="cx"> void setPremultipliedAlpha(bool premultipliedAlpha);
</span><span class="cx">
</span><span class="cx"> // Whether or not to preserve the drawing buffer after presentation to the
</span><del>- // screen; default=false
</del><ins>+ // screen. Default is false.
</ins><span class="cx"> bool preserveDrawingBuffer() const;
</span><span class="cx"> void setPreserveDrawingBuffer(bool);
</span><span class="cx">
</span><ins>+ // Whether or not to attempt to use a lower-power GPU if it is available.
+ // Default is false.
+ bool preferLowPowerToHighPerformance() const;
+ void setPreferLowPowerToHighPerformance(bool);
+
+ // Whether or not to immediately fail if a performant GPU is not available.
+ // Default is false.
+ bool failIfMajorPerformanceCaveat() const;
+ void setFailIfMajorPerformanceCaveat(bool);
+
</ins><span class="cx"> // Fetches a copy of the attributes stored in this object in a
</span><span class="cx"> // form that can be used to initialize a GraphicsContext3D.
</span><span class="cx"> GraphicsContext3D::Attributes attributes() const;
</span></span></pre></div>
<a id="trunkSourceWebCorehtmlcanvasWebGLContextAttributesidl"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/html/canvas/WebGLContextAttributes.idl (204617 => 204618)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/html/canvas/WebGLContextAttributes.idl 2016-08-19 00:12:27 UTC (rev 204617)
+++ trunk/Source/WebCore/html/canvas/WebGLContextAttributes.idl 2016-08-19 00:50:36 UTC (rev 204618)
</span><span class="lines">@@ -34,4 +34,6 @@
</span><span class="cx"> attribute boolean antialias;
</span><span class="cx"> attribute boolean premultipliedAlpha;
</span><span class="cx"> attribute boolean preserveDrawingBuffer;
</span><ins>+ attribute boolean preferLowPowerToHighPerformance;
+ attribute boolean failIfMajorPerformanceCaveat;
</ins><span class="cx"> };
</span></span></pre></div>
<a id="trunkSourceWebCorehtmlcanvasWebGLRenderingContextBasecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp (204617 => 204618)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp 2016-08-19 00:12:27 UTC (rev 204617)
+++ trunk/Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp 2016-08-19 00:50:36 UTC (rev 204618)
</span><span class="lines">@@ -397,7 +397,6 @@
</span><span class="cx">
</span><span class="cx"> attributes.noExtensions = true;
</span><span class="cx"> attributes.shareResources = false;
</span><del>- attributes.preferDiscreteGPU = true;
</del><span class="cx">
</span><span class="cx"> if (frame->settings().forceSoftwareWebGLRendering())
</span><span class="cx"> attributes.forceSoftwareRenderer = true;
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicsGraphicsContext3Dh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/GraphicsContext3D.h (204617 => 204618)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/GraphicsContext3D.h 2016-08-19 00:12:27 UTC (rev 204617)
+++ trunk/Source/WebCore/platform/graphics/GraphicsContext3D.h 2016-08-19 00:50:36 UTC (rev 204618)
</span><span class="lines">@@ -717,34 +717,19 @@
</span><span class="cx">
</span><span class="cx"> // Context creation attributes.
</span><span class="cx"> struct Attributes {
</span><del>- Attributes()
- : alpha(true)
- , depth(true)
- , stencil(false)
- , antialias(true)
- , premultipliedAlpha(true)
- , preserveDrawingBuffer(false)
- , noExtensions(false)
- , shareResources(true)
- , preferDiscreteGPU(false)
- , forceSoftwareRenderer(false)
- , useGLES3(false)
- , devicePixelRatio(1)
- {
- }
-
- bool alpha;
- bool depth;
- bool stencil;
- bool antialias;
- bool premultipliedAlpha;
- bool preserveDrawingBuffer;
- bool noExtensions;
- bool shareResources;
- bool preferDiscreteGPU;
- bool forceSoftwareRenderer;
- bool useGLES3;
- float devicePixelRatio;
</del><ins>+ bool alpha { true };
+ bool depth { true };
+ bool stencil { false };
+ bool antialias { true };
+ bool premultipliedAlpha { true };
+ bool preserveDrawingBuffer { false };
+ bool noExtensions { false };
+ bool shareResources { true };
+ bool preferLowPowerToHighPerformance { false };
+ bool forceSoftwareRenderer { false };
+ bool failIfMajorPerformanceCaveat { false };
+ bool useGLES3 { false };
+ float devicePixelRatio { 1 };
</ins><span class="cx"> };
</span><span class="cx">
</span><span class="cx"> enum RenderStyle {
</span></span></pre>
</div>
</div>
</body>
</html>