| /* |
| 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 "GraphicsSurface.h" |
| |
| #if USE(GRAPHICS_SURFACE) && PLATFORM(QT) |
| |
| #include "BitmapImage.h" |
| #include <QImage> |
| #include <QPainter> |
| #include <QPixmap> |
| |
| namespace WebCore { |
| void GraphicsSurface::didReleaseImage(void* data) |
| { |
| GraphicsSurface* surface = static_cast<GraphicsSurface*>(data); |
| surface->platformUnlock(); |
| } |
| |
| PassOwnPtr<GraphicsContext> GraphicsSurface::platformBeginPaint(const IntSize& size, char* bits, int stride) |
| { |
| QImage::Format format = (flags() & SupportsAlpha) ? QImage::Format_ARGB32_Premultiplied : QImage::Format_RGB32; |
| |
| // The image and painter will be released when the returned GraphicsContext is released. |
| QImage* image = new QImage(reinterpret_cast<uchar*>(bits), size.width(), size.height(), stride, format, didReleaseImage, this); |
| QPainter* painter = new QPainter(image); |
| painter->setRenderHint(QPainter::SmoothPixmapTransform, true); |
| OwnPtr<GraphicsContext> graphicsContext = adoptPtr(new GraphicsContext(painter)); |
| graphicsContext->takeOwnershipOfPlatformContext(); |
| return graphicsContext.release(); |
| } |
| |
| PassRefPtr<Image> GraphicsSurface::createReadOnlyImage(const IntRect& rect) |
| { |
| int stride; |
| QImage::Format format = (flags() & SupportsAlpha) ? QImage::Format_ARGB32_Premultiplied : QImage::Format_RGB32; |
| char* data = platformLock(rect, &stride, RetainPixels | ReadOnly); |
| QImage image(reinterpret_cast<uchar*>(data), rect.width(), rect.height(), stride, format, didReleaseImage, this); |
| return BitmapImage::create(new QPixmap(QPixmap::fromImage(image))); |
| } |
| |
| } |
| #endif |