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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 QtOpenGL 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_GL_P_H
#define QPIXMAPDATA_GL_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qgl_p.h"
#include "qgl.h"
#include "private/qpixmapdata_p.h"
#include "private/qglpaintdevice_p.h"
#ifdef Q_OS_SYMBIAN
#include "private/qvolatileimage_p.h"
#ifdef QT_SYMBIAN_SUPPORTS_SGIMAGE
# include <sgresource/sgimage.h>
#endif
#endif
QT_BEGIN_NAMESPACE
class QPaintEngine;
class QGLFramebufferObject;
class QGLFramebufferObjectFormat;
class QGLPixmapData;
#ifdef Q_OS_SYMBIAN
class QNativeImageHandleProvider;
#else
class QGLFramebufferObjectPool
{
public:
QGLFramebufferObject *acquire(const QSize &size, const QGLFramebufferObjectFormat &format, bool strictSize = false);
void release(QGLFramebufferObject *fbo);
private:
QList<QGLFramebufferObject *> m_fbos;
};
QGLFramebufferObjectPool* qgl_fbo_pool();
class QGLPixmapGLPaintDevice : public QGLPaintDevice
{
public:
QPaintEngine* paintEngine() const;
void beginPaint();
void endPaint();
QGLContext* context() const;
QSize size() const;
bool alphaRequested() const;
void setPixmapData(QGLPixmapData*);
private:
QGLPixmapData *data;
};
#endif
class Q_OPENGL_EXPORT QGLPixmapData : public QPixmapData
{
public:
QGLPixmapData(PixelType type);
~QGLPixmapData();
QPixmapData *createCompatiblePixmapData() const;
// Re-implemented from QPixmapData:
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 copy(const QPixmapData *data, const QRect &rect);
bool scroll(int dx, int dy, const QRect &rect);
void fill(const QColor &color);
bool hasAlphaChannel() const;
QImage toImage() const;
QPaintEngine *paintEngine() const;
int metric(QPaintDevice::PaintDeviceMetric metric) const;
// For accessing as a target:
QGLPaintDevice *glDevice() const;
// For accessing as a source:
bool isValidContext(const QGLContext *ctx) const;
GLuint bind(bool copyBack = true) const;
QGLTexture *texture() const;
#ifdef Q_OS_SYMBIAN
void destroyTexture();
// Detach this image from the image pool.
void detachTextureFromPool();
// Release the GL resources associated with this pixmap and copy
// the pixmap's contents out of the GPU back into main memory.
// The GL resource will be automatically recreated the next time
// ensureCreated() is called. Does nothing if the pixmap cannot be
// hibernated for some reason (e.g. texture is shared with another
// process via a SgImage).
void hibernate();
// Called when the QGLTexturePool wants to reclaim this pixmap's
// texture objects to reuse storage.
void reclaimTexture();
void forceToImage();
QVolatileImage toVolatileImage() const { return m_source; }
QImage::Format idealFormat(QImage &image, Qt::ImageConversionFlags flags);
void* toNativeType(NativeType type);
void fromNativeType(void* pixmap, NativeType type);
bool initFromNativeImageHandle(void *handle, const QString &type);
void createFromNativeImageHandleProvider();
void releaseNativeImageHandle();
#endif
private:
bool isValid() const;
void ensureCreated() const;
bool isUninitialized() const { return m_dirty && m_source.isNull(); }
bool needsFill() const { return m_hasFillColor; }
QColor fillColor() const { return m_fillColor; }
QGLPixmapData(const QGLPixmapData &other);
QGLPixmapData &operator=(const QGLPixmapData &other);
void copyBackFromRenderFbo(bool keepCurrentFboBound) const;
QSize size() const { return QSize(w, h); }
bool useFramebufferObjects() const;
QImage fillImage(const QColor &color) const;
void createPixmapForImage(QImage &image, Qt::ImageConversionFlags flags, bool inPlace);
mutable QGLFramebufferObject *m_renderFbo;
mutable QPaintEngine *m_engine;
mutable QGLContext *m_ctx;
#ifdef Q_OS_SYMBIAN
mutable QVolatileImage m_source;
mutable QNativeImageHandleProvider *nativeImageHandleProvider;
void *nativeImageHandle;
QString nativeImageType;
#ifdef QT_SYMBIAN_SUPPORTS_SGIMAGE
RSgImage *m_sgImage;
#endif
#else
mutable QImage m_source;
#endif
mutable QGLTexture m_texture;
// the texture is not in sync with the source image
mutable bool m_dirty;
// fill has been called and no painting has been done, so the pixmap is
// represented by a single fill color
mutable QColor m_fillColor;
mutable bool m_hasFillColor;
mutable bool m_hasAlpha;
#ifndef Q_OS_SYMBIAN
mutable QGLPixmapGLPaintDevice m_glDevice;
#endif
friend class QGLPixmapGLPaintDevice;
friend class QMeeGoPixmapData;
friend class QMeeGoLivePixmapData;
};
QT_END_NAMESPACE
#endif // QPIXMAPDATA_GL_P_H
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