/* * 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 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" #import "WebTiledLayer.h" #import "GraphicsContext.h" #import "GraphicsLayerCA.h" #import "PlatformCALayer.h" #if PLATFORM(IOS) #import "WebCoreThread.h" #import "WebCoreThreadRun.h" #endif using namespace WebCore; @implementation WebTiledLayer // Set a zero duration for the fade in of tiles + (CFTimeInterval)fadeDuration { return 0; } // Make sure that tiles are drawn on the main thread + (BOOL)shouldDrawOnMainThread { #if PLATFORM(IOS) // FIXME: WebKit2 always wants to draw on the main thread, but there is // probably a better way to check for WebKit2 than using the existance of // the web thread as a proxy. return !WebThreadIsEnabled(); #else return YES; #endif } + (unsigned int)prefetchedTiles { return 2; } // Disable default animations - (id<CAAction>)actionForKey:(NSString *)key { UNUSED_PARAM(key); return nil; } - (void)setNeedsDisplay { PlatformCALayer* layer = PlatformCALayer::platformCALayer(self); if (layer && layer->owner() && layer->owner()->platformCALayerDrawsContent()) [super setNeedsDisplay]; } - (void)setNeedsDisplayInRect:(CGRect)dirtyRect { PlatformCALayer* platformLayer = PlatformCALayer::platformCALayer(self); if (!platformLayer) { [super setNeedsDisplayInRect:dirtyRect]; return; } if (PlatformCALayerClient* layerOwner = platformLayer->owner()) { if (layerOwner->platformCALayerDrawsContent()) { if (layerOwner->platformCALayerContentsOrientation() == WebCore::GraphicsLayer::CompositingCoordinatesBottomUp) dirtyRect.origin.y = [self bounds].size.height - dirtyRect.origin.y - dirtyRect.size.height; [super setNeedsDisplayInRect:dirtyRect]; if (layerOwner->platformCALayerShowRepaintCounter(platformLayer)) { CGRect bounds = [self bounds]; CGRect indicatorRect = CGRectMake(bounds.origin.x, bounds.origin.y, 52, 27); if (layerOwner->platformCALayerContentsOrientation() == WebCore::GraphicsLayer::CompositingCoordinatesBottomUp) indicatorRect.origin.y = [self bounds].size.height - indicatorRect.origin.y - indicatorRect.size.height; [super setNeedsDisplayInRect:indicatorRect]; } } } } - (void)display { [super display]; #if PLATFORM(IOS) // CATiledLayer never calls display on a background thread, so it's safe // to assume we're either on the main thread or on the web thread. if (pthread_main_np()) WebThreadLock(); ASSERT(WebThreadIsLockedOrDisabled()); #endif PlatformCALayer* layer = PlatformCALayer::platformCALayer(self); if (layer && layer->owner()) layer->owner()->platformCALayerLayerDidDisplay(self); } - (void)drawInContext:(CGContextRef)context { #if PLATFORM(IOS) void (^draw)() = ^{ #endif PlatformCALayer* layer = PlatformCALayer::platformCALayer(self); if (layer) drawLayerContents(context, layer); #if PLATFORM(IOS) }; if (pthread_main_np()) { WebThreadLock(); draw(); } else WebThreadRunSync(draw); #endif } @end // implementation WebTiledLayer