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-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtOpenVG module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this
-** file. Please review the following information to ensure the GNU Lesser
-** General Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QPIXMAPDATA_VG_P_H
-#define QPIXMAPDATA_VG_P_H
-
-//
-// W A R N I N G
-// -------------
-//
-// This file is not part of the Qt API. It exists for the convenience
-// of other Qt classes. This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <QtGui/private/qpixmap_raster_p.h>
-#include <QtGui/private/qvolatileimage_p.h>
-#include "qvg_p.h"
-
-#if defined(Q_OS_SYMBIAN)
-class RSGImage;
-#endif
-
-QT_BEGIN_NAMESPACE
-
-class QEglContext;
-class QVGImagePool;
-class QImageReader;
-
-#if !defined(QT_NO_EGL)
-class QVGPixmapData;
-class QVGSharedContext;
-
-void qt_vg_register_pixmap(QVGPixmapData *pd);
-void qt_vg_unregister_pixmap(QVGPixmapData *pd);
-void qt_vg_hibernate_pixmaps(QVGSharedContext *context);
-#endif
-
-class QNativeImageHandleProvider;
-
-class Q_OPENVG_EXPORT QVGPixmapData : public QPixmapData
-{
-public:
- QVGPixmapData(PixelType type);
- ~QVGPixmapData();
-
- QPixmapData *createCompatiblePixmapData() const;
-
- // Is this pixmap valid (i.e. non-zero in size)?
- bool isValid() const;
-
- void resize(int width, int height);
- void fromImage(const QImage &image, Qt::ImageConversionFlags flags);
- void fromImageReader(QImageReader *imageReader,
- Qt::ImageConversionFlags flags);
- bool fromFile(const QString &filename, const char *format,
- Qt::ImageConversionFlags flags);
- bool fromData(const uchar *buffer, uint len, const char *format,
- Qt::ImageConversionFlags flags);
-
- void fill(const QColor &color);
- bool hasAlphaChannel() const;
- void setAlphaChannel(const QPixmap &alphaChannel);
- QImage toImage() const;
- void copy(const QPixmapData *data, const QRect &rect);
- QImage *buffer();
- QPaintEngine* paintEngine() const;
-
- // Return the VGImage form of this pixmap, creating it if necessary.
- // This assumes that there is a VG context current.
- virtual VGImage toVGImage();
-
- // Return the VGImage form for a specific opacity setting.
- virtual VGImage toVGImage(qreal opacity);
-
- // Detach this image from the image pool.
- virtual void detachImageFromPool();
-
- // Release the VG resources associated with this pixmap and copy
- // the pixmap's contents out of the GPU back into main memory.
- // The VG resource will be automatically recreated the next time
- // toVGImage() is called. Does nothing if the pixmap cannot be
- // hibernated for some reason (e.g. VGImage is shared with another
- // process via a SgImage).
- virtual void hibernate();
-
- // Called when the QVGImagePool wants to reclaim this pixmap's
- // VGImage objects to reuse storage.
- virtual void reclaimImages();
-
- // If vgImage is valid but source is null, copies pixel data from GPU back
- // into main memory and destroys vgImage. For a normal pixmap this function
- // does nothing, however if the pixmap was created directly from a VGImage
- // (e.g. via SgImage on Symbian) then by doing the readback this ensures
- // that QImage-based functions can operate too.
- virtual void ensureReadback(bool readOnly) const;
-
- QSize size() const { return QSize(w, h); }
-
-#if defined(Q_OS_SYMBIAN)
- void* toNativeType(NativeType type);
- void fromNativeType(void* pixmap, NativeType type);
- bool initFromNativeImageHandle(void *handle, const QString &type);
- void createFromNativeImageHandleProvider();
- void releaseNativeImageHandle();
-#endif
-
-protected:
- int metric(QPaintDevice::PaintDeviceMetric metric) const;
- void createPixmapForImage(QImage &image, Qt::ImageConversionFlags flags, bool inPlace);
-
-#if defined(Q_OS_SYMBIAN)
- void cleanup();
-#endif
-
-private:
- QVGPixmapData *nextLRU;
- QVGPixmapData *prevLRU;
- bool inLRU;
- bool failedToAlloc;
- friend class QVGImagePool;
- friend class QVGPaintEngine;
-
-#if !defined(QT_NO_EGL)
- QVGPixmapData *next;
- QVGPixmapData *prev;
-
- friend void qt_vg_register_pixmap(QVGPixmapData *pd);
- friend void qt_vg_unregister_pixmap(QVGPixmapData *pd);
- friend void qt_vg_hibernate_pixmaps(QVGSharedContext *context);
-#endif
-
-protected:
- QSize prevSize;
- VGImage vgImage;
- VGImage vgImageOpacity;
- qreal cachedOpacity;
- mutable QVolatileImage source;
- mutable bool recreate;
- bool inImagePool;
-#if !defined(QT_NO_EGL)
- mutable QEglContext *context;
-#endif
-
-#if defined(Q_OS_SYMBIAN)
- mutable QNativeImageHandleProvider *nativeImageHandleProvider;
- void *nativeImageHandle;
- QString nativeImageType;
-#endif
-
- void forceToImage(bool allowReadback = true);
- QImage::Format sourceFormat() const;
- QImage::Format idealFormat(QImage *image, Qt::ImageConversionFlags flags) const;
- void updateSerial();
-
- void destroyImageAndContext();
- void destroyImages();
-};
-
-QT_END_NAMESPACE
-
-#endif