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/*
* Copyright (C) 2011 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. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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.
*/
#import "config.h"
#import "LayerTreeHostCA.h"
#import "WebProcess.h"
#import <QuartzCore/CATransaction.h>
#import <WebCore/GraphicsLayer.h>
#import <WebKitSystemInterface.h>
@interface CATransaction (Details)
+ (void)synchronize;
@end
namespace WebKit {
void LayerTreeHostCA::platformInitialize()
{
mach_port_t serverPort = WebProcess::shared().compositingRenderServerPort();
m_remoteLayerClient = WKCARemoteLayerClientMakeWithServerPort(serverPort);
[m_rootLayer->platformLayer() setGeometryFlipped:YES];
WKCARemoteLayerClientSetLayer(m_remoteLayerClient.get(), m_rootLayer->platformLayer());
m_layerTreeContext.contextID = WKCARemoteLayerClientGetClientId(m_remoteLayerClient.get());
}
void LayerTreeHostCA::scheduleLayerFlush()
{
CFRunLoopRef currentRunLoop = CFRunLoopGetCurrent();
// Make sure we wake up the loop or the observer could be delayed until some other source fires.
CFRunLoopWakeUp(currentRunLoop);
if (m_flushPendingLayerChangesRunLoopObserver)
return;
// Run before the Core Animation commit observer, which has order 2000000.
const CFIndex runLoopOrder = 2000000 - 1;
CFRunLoopObserverContext context = { 0, this, 0, 0, 0 };
m_flushPendingLayerChangesRunLoopObserver.adoptCF(CFRunLoopObserverCreate(0, kCFRunLoopBeforeWaiting | kCFRunLoopExit, true, runLoopOrder, flushPendingLayerChangesRunLoopObserverCallback, &context));
CFRunLoopAddObserver(currentRunLoop, m_flushPendingLayerChangesRunLoopObserver.get(), kCFRunLoopCommonModes);
}
void LayerTreeHostCA::platformInvalidate()
{
if (m_flushPendingLayerChangesRunLoopObserver) {
CFRunLoopObserverInvalidate(m_flushPendingLayerChangesRunLoopObserver.get());
m_flushPendingLayerChangesRunLoopObserver = nullptr;
}
WKCARemoteLayerClientInvalidate(m_remoteLayerClient.get());
m_remoteLayerClient = nullptr;
}
void LayerTreeHostCA::platformSizeDidChange()
{
[CATransaction flush];
[CATransaction synchronize];
}
void LayerTreeHostCA::platformForceRepaint()
{
[CATransaction flush];
[CATransaction synchronize];
}
void LayerTreeHostCA::flushPendingLayerChangesRunLoopObserverCallback(CFRunLoopObserverRef, CFRunLoopActivity, void* context)
{
// This gets called outside of the normal event loop so wrap in an autorelease pool
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
static_cast<LayerTreeHostCA*>(context)->performScheduledLayerFlush();
[pool drain];
}
void LayerTreeHostCA::platformDidPerformScheduledLayerFlush()
{
// We successfully flushed the pending layer changes, remove the run loop observer.
ASSERT(m_flushPendingLayerChangesRunLoopObserver);
CFRunLoopObserverInvalidate(m_flushPendingLayerChangesRunLoopObserver.get());
m_flushPendingLayerChangesRunLoopObserver = 0;
}
} // namespace WebKit
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