2 * Copyright (C) 2009 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #if USE(ACCELERATED_COMPOSITING)
30 #include "WKCACFContextFlusher.h"
32 #include <wtf/StdLibExtras.h>
33 #include <QuartzCore/CACFContext.h>
37 WKCACFContextFlusher& WKCACFContextFlusher::shared()
39 DEFINE_STATIC_LOCAL(WKCACFContextFlusher, flusher, ());
43 WKCACFContextFlusher::WKCACFContextFlusher()
47 WKCACFContextFlusher::~WKCACFContextFlusher()
51 void WKCACFContextFlusher::addContext(CACFContextRef context)
55 m_contexts.add(context);
59 void WKCACFContextFlusher::removeContext(CACFContextRef context)
63 ContextSet::iterator found = m_contexts.find(context);
64 if (found == m_contexts.end())
68 m_contexts.remove(found);
71 void WKCACFContextFlusher::flushAllContexts()
73 // addContext might get called beneath CACFContextFlush, and we don't want m_contexts to change while
74 // we're iterating over it, so we move the contexts into a local ContextSet and iterate over that instead.
75 ContextSet contextsToFlush;
76 contextsToFlush.swap(m_contexts);
78 ContextSet::const_iterator end = contextsToFlush.end();
79 for (ContextSet::const_iterator it = contextsToFlush.begin(); it != end; ++it) {
80 CACFContextRef context = *it;
81 CACFContextFlush(context);
88 #endif // USE(ACCELERATED_COMPOSITING)