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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 "WebTileLayer.h"
#import "TileCache.h"
#import <wtf/CurrentTime.h>
#import <wtf/UnusedParam.h>
using namespace WebCore;
@interface WebTileLayer (ScrollingPerformanceLoggingInternal)
- (void)logFilledFreshTile;
@end
@implementation WebTileLayer
- (id<CAAction>)actionForKey:(NSString *)key
{
UNUSED_PARAM(key);
// Disable all animations.
return nil;
}
- (void)drawInContext:(CGContextRef)context
{
if (_tileCache) {
_tileCache->drawLayer(self, context);
if (static_cast<TiledBacking*>(_tileCache)->scrollingPerformanceLoggingEnabled())
[self logFilledFreshTile];
}
}
- (void)setTileCache:(WebCore::TileCache*)tileCache
{
_tileCache = tileCache;
}
- (unsigned)incrementRepaintCount
{
return ++_repaintCount;
}
- (unsigned)repaintCount
{
return _repaintCount;
}
- (void)logFilledFreshTile
{
IntRect visiblePart(enclosingIntRect([self frame]));
visiblePart.intersect(_tileCache->visibleRect());
if ([self repaintCount] == 1 && !visiblePart.isEmpty())
WTFLogAlways("SCROLLING: Filled visible fresh tile. Time: %f Unfilled Pixels: %u\n", WTF::monotonicallyIncreasingTime(), _tileCache->blankPixelCount());
}
@end
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