/* * Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies) * * 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. */ #include "config.h" #include "Tile.h" #if USE(COORDINATED_GRAPHICS) #include "SurfaceUpdateInfo.h" #include "TiledBackingStore.h" #include "TiledBackingStoreClient.h" namespace WebCore { static const uint32_t InvalidTileID = 0; Tile::Tile(TiledBackingStore& tiledBackingStore, const Coordinate& tileCoordinate) : m_tiledBackingStore(tiledBackingStore) , m_ID(InvalidTileID) , m_coordinate(tileCoordinate) , m_rect(tiledBackingStore.tileRectForCoordinate(tileCoordinate)) , m_dirtyRect(m_rect) { } Tile::~Tile() { if (m_ID != InvalidTileID) m_tiledBackingStore.client().removeTile(m_ID); } void Tile::ensureTileID() { static uint32_t id = 1; if (m_ID == InvalidTileID) { m_ID = id++; // We may get an invalid ID due to wrap-around on overflow. if (m_ID == InvalidTileID) m_ID = id++; m_tiledBackingStore.client().createTile(m_ID, m_tiledBackingStore.contentsScale()); } } bool Tile::isDirty() const { return !m_dirtyRect.isEmpty(); } bool Tile::isReadyToPaint() const { return m_ID != InvalidTileID; } void Tile::invalidate(const IntRect& dirtyRect) { IntRect tileDirtyRect = intersection(dirtyRect, m_rect); if (!tileDirtyRect.isEmpty()) m_dirtyRect.unite(tileDirtyRect); } void Tile::markClean() { m_dirtyRect = { }; } void Tile::resize(const IntSize& newSize) { m_rect = IntRect(m_rect.location(), newSize); m_dirtyRect = m_rect; } } // namespace WebCore #endif // USE(COORDINATED_GRAPHICS)