| /* |
| * Copyright (C) 2009 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| |
| #if USE(ACCELERATED_COMPOSITING) |
| |
| #include "WKCACFContextFlusher.h" |
| |
| #include <wtf/StdLibExtras.h> |
| #include <QuartzCore/CACFContext.h> |
| |
| namespace WebCore { |
| |
| WKCACFContextFlusher& WKCACFContextFlusher::shared() |
| { |
| DEFINE_STATIC_LOCAL(WKCACFContextFlusher, flusher, ()); |
| return flusher; |
| } |
| |
| WKCACFContextFlusher::WKCACFContextFlusher() |
| { |
| } |
| |
| WKCACFContextFlusher::~WKCACFContextFlusher() |
| { |
| } |
| |
| void WKCACFContextFlusher::addContext(CACFContextRef context) |
| { |
| ASSERT(context); |
| |
| m_contexts.add(context); |
| CFRetain(context); |
| } |
| |
| void WKCACFContextFlusher::removeContext(CACFContextRef context) |
| { |
| ASSERT(context); |
| |
| ContextSet::iterator found = m_contexts.find(context); |
| if (found == m_contexts.end()) |
| return; |
| |
| CFRelease(*found); |
| m_contexts.remove(found); |
| } |
| |
| void WKCACFContextFlusher::flushAllContexts() |
| { |
| // addContext might get called beneath CACFContextFlush, and we don't want m_contexts to change while |
| // we're iterating over it, so we move the contexts into a local ContextSet and iterate over that instead. |
| ContextSet contextsToFlush; |
| contextsToFlush.swap(m_contexts); |
| |
| ContextSet::const_iterator end = contextsToFlush.end(); |
| for (ContextSet::const_iterator it = contextsToFlush.begin(); it != end; ++it) { |
| CACFContextRef context = *it; |
| CACFContextFlush(context); |
| CFRelease(context); |
| } |
| } |
| |
| } |
| |
| #endif // USE(ACCELERATED_COMPOSITING) |