| /* |
| Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies) |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public |
| License as published by the Free Software Foundation; either |
| version 2 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public License |
| along with this library; see the file COPYING.LIB. If not, write to |
| the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| #include "TextureMapperBackingStore.h" |
| |
| #include "FloatRect.h" |
| |
| namespace WebCore { |
| |
| unsigned TextureMapperBackingStore::calculateExposedTileEdges(const FloatRect& totalRect, const FloatRect& tileRect) |
| { |
| unsigned exposedEdges = TextureMapper::NoEdges; |
| if (!tileRect.x()) |
| exposedEdges |= TextureMapper::LeftEdge; |
| if (!tileRect.y()) |
| exposedEdges |= TextureMapper::TopEdge; |
| if (tileRect.width() + tileRect.x() >= totalRect.width()) |
| exposedEdges |= TextureMapper::RightEdge; |
| if (tileRect.height() + tileRect.y() >= totalRect.height()) |
| exposedEdges |= TextureMapper::BottomEdge; |
| return exposedEdges; |
| } |
| |
| } // namespace WebCore |