1/* 2 * Copyright (C) 2009 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27 28#if USE(ACCELERATED_COMPOSITING) 29 30#import "WebTiledLayer.h" 31 32#import "GraphicsContext.h" 33#import "GraphicsLayerCA.h" 34#import "PlatformCALayer.h" 35 36using namespace WebCore; 37 38@implementation WebTiledLayer 39 40// Set a zero duration for the fade in of tiles 41+ (CFTimeInterval)fadeDuration 42{ 43 return 0; 44} 45 46// Make sure that tiles are drawn on the main thread 47+ (BOOL)shouldDrawOnMainThread 48{ 49 return YES; 50} 51 52+ (unsigned int)prefetchedTiles 53{ 54 return 2; 55} 56 57// Disable default animations 58- (id<CAAction>)actionForKey:(NSString *)key 59{ 60 UNUSED_PARAM(key); 61 return nil; 62} 63 64- (void)setNeedsDisplay 65{ 66 PlatformCALayer* layer = PlatformCALayer::platformCALayer(self); 67 if (layer && layer->owner() && layer->owner()->platformCALayerDrawsContent()) 68 [super setNeedsDisplay]; 69} 70 71- (void)setNeedsDisplayInRect:(CGRect)dirtyRect 72{ 73 PlatformCALayer* platformLayer = PlatformCALayer::platformCALayer(self); 74 if (!platformLayer) { 75 [super setNeedsDisplayInRect:dirtyRect]; 76 return; 77 } 78 79 if (PlatformCALayerClient* layerOwner = platformLayer->owner()) { 80 if (layerOwner->platformCALayerDrawsContent()) { 81 if (layerOwner->platformCALayerContentsOrientation() == WebCore::GraphicsLayer::CompositingCoordinatesBottomUp) 82 dirtyRect.origin.y = [self bounds].size.height - dirtyRect.origin.y - dirtyRect.size.height; 83 84 [super setNeedsDisplayInRect:dirtyRect]; 85 86 if (layerOwner->platformCALayerShowRepaintCounter(platformLayer)) { 87 CGRect bounds = [self bounds]; 88 CGRect indicatorRect = CGRectMake(bounds.origin.x, bounds.origin.y, 52, 27); 89 if (layerOwner->platformCALayerContentsOrientation() == WebCore::GraphicsLayer::CompositingCoordinatesBottomUp) 90 indicatorRect.origin.y = [self bounds].size.height - indicatorRect.origin.y - indicatorRect.size.height; 91 92 [super setNeedsDisplayInRect:indicatorRect]; 93 } 94 } 95 } 96} 97 98- (void)display 99{ 100 [super display]; 101 PlatformCALayer* layer = PlatformCALayer::platformCALayer(self); 102 if (layer && layer->owner()) 103 layer->owner()->platformCALayerLayerDidDisplay(self); 104} 105 106- (void)drawInContext:(CGContextRef)context 107{ 108 PlatformCALayer* layer = PlatformCALayer::platformCALayer(self); 109 if (layer) 110 drawLayerContents(context, self, layer); 111} 112 113@end // implementation WebTiledLayer 114 115#endif // USE(ACCELERATED_COMPOSITING) 116