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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKCONTEXT2DTEXTURE_P_H
#define QQUICKCONTEXT2DTEXTURE_P_H
#include <QtQuick/qsgtexture.h>
#include "qquickcanvasitem_p.h"
#include "qquickcontext2d_p.h"
#include <QOpenGLContext>
#include <QOpenGLFramebufferObject>
#include <QtCore/QMutex>
#include <QtCore/QWaitCondition>
#include <QtCore/QThread>
QT_BEGIN_NAMESPACE
class QQuickContext2DTile;
class QQuickContext2DCommandBuffer;
class QQuickContext2DTexture : public QSGDynamicTexture
{
Q_OBJECT
public:
QQuickContext2DTexture();
~QQuickContext2DTexture();
virtual bool hasAlphaChannel() const {return true;}
virtual bool hasMipmaps() const {return false;}
virtual QSize textureSize() const;
virtual QQuickCanvasItem::RenderTarget renderTarget() const = 0;
static QRect tiledRect(const QRectF& window, const QSize& tileSize);
bool setCanvasSize(const QSize &size);
bool setTileSize(const QSize &size);
bool setCanvasWindow(const QRect& canvasWindow);
void setSmooth(bool smooth);
void setAntialiasing(bool antialiasing);
bool setDirtyRect(const QRect &dirtyRect);
bool canvasDestroyed();
Q_SIGNALS:
void textureChanged();
public Q_SLOTS:
void markDirtyTexture();
void setItem(QQuickCanvasItem* item);
void canvasChanged(const QSize& canvasSize, const QSize& tileSize, const QRect& canvasWindow, const QRect& dirtyRect, bool smooth, bool antialiasing);
void paint(QQuickContext2DCommandBuffer *ccb);
virtual void grabImage(const QRectF& region = QRectF()) = 0;
protected:
void paintWithoutTiles(QQuickContext2DCommandBuffer *ccb);
virtual QPaintDevice* beginPainting() {m_painting = true; return 0; }
virtual void endPainting() {m_painting = false;}
virtual QQuickContext2DTile* createTile() const = 0;
virtual void compositeTile(QQuickContext2DTile* tile) = 0;
void clearTiles();
virtual QSize adjustedTileSize(const QSize &ts);
QRect createTiles(const QRect& window);
QList<QQuickContext2DTile*> m_tiles;
QQuickContext2D* m_context;
QQuickContext2D::State m_state;
QQuickCanvasItem* m_item;
QSize m_canvasSize;
QSize m_tileSize;
QRect m_canvasWindow;
uint m_dirtyCanvas : 1;
uint m_canvasWindowChanged : 1;
uint m_dirtyTexture : 1;
uint m_smooth : 1;
uint m_antialiasing : 1;
uint m_tiledCanvas : 1;
uint m_painting : 1;
};
class QQuickContext2DFBOTexture : public QQuickContext2DTexture
{
Q_OBJECT
public:
QQuickContext2DFBOTexture();
~QQuickContext2DFBOTexture();
virtual int textureId() const;
virtual bool updateTexture();
virtual QQuickContext2DTile* createTile() const;
virtual QPaintDevice* beginPainting();
virtual void endPainting();
QRectF normalizedTextureSubRect() const;
virtual QQuickCanvasItem::RenderTarget renderTarget() const;
virtual void compositeTile(QQuickContext2DTile* tile);
virtual void bind();
QSize adjustedTileSize(const QSize &ts);
public Q_SLOTS:
virtual void grabImage(const QRectF& region = QRectF());
private:
bool doMultisampling() const;
QOpenGLFramebufferObject *m_fbo;
QOpenGLFramebufferObject *m_multisampledFbo;
QMutex m_mutex;
QWaitCondition m_condition;
QSize m_fboSize;
QPaintDevice *m_paint_device;
};
class QSGPlainTexture;
class QQuickContext2DImageTexture : public QQuickContext2DTexture
{
Q_OBJECT
public:
QQuickContext2DImageTexture();
~QQuickContext2DImageTexture();
virtual int textureId() const;
virtual void bind();
virtual QQuickCanvasItem::RenderTarget renderTarget() const;
virtual bool updateTexture();
virtual QQuickContext2DTile* createTile() const;
virtual QPaintDevice* beginPainting();
virtual void compositeTile(QQuickContext2DTile* tile);
public Q_SLOTS:
virtual void grabImage(const QRectF& region = QRectF());
private:
QSGPlainTexture *imageTexture() const;
QImage m_image;
QPainter m_painter;
QSGPlainTexture* m_texture;
};
QT_END_NAMESPACE
#endif // QQUICKCONTEXT2DTEXTURE_P_H
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