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/***************************************************************************
* Copyright (C) 2009-2013 by Savoir-Faire Linux *
* Author : Emmanuel Lepage Valle <emmanuel.lepage@savoirfairelinux.com >*
* Nokia *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
**************************************************************************/
#ifndef ACCELERATEDVIDEOWIDGET_H
#define ACCELERATEDVIDEOWIDGET_H
#include <QGLPixelBuffer>
#include <QGLWidget>
#include <QPixmap>
#include <QtOpenGL/qgl.h>
#include <QtCore/qvector.h>
#include <QtGui/qmatrix4x4.h>
#include <QtGui/qvector3d.h>
#include <QtGui/qvector2d.h>
class Geometry;
//class Cube;
class Tile;
class QPropertyAnimation;
class Geometry
{
public:
void loadArrays() const;
void addQuad(const QVector3D &a, const QVector3D &b,
const QVector3D &c, const QVector3D &d,
const QVector<QVector2D> &tex);
void setColors(int start, GLfloat colors[4][4]);
const GLushort *indices() const { return faces.constData(); }
int count() const { return faces.count(); }
private:
QVector<GLushort> faces ;
QVector<QVector3D> vertices ;
QVector<QVector3D> normals ;
QVector<QVector2D> texCoords;
QVector<QVector4D> colors ;
int append(const QVector3D &a, const QVector3D &n, const QVector2D &t);
void addTri(const QVector3D &a, const QVector3D &b, const QVector3D &c, const QVector3D &n);
friend class Tile;
};
class Tile
{
public:
void draw() const;
void setColors(GLfloat[4][4]);
protected:
Tile(const QVector3D &loc = QVector3D());
QVector3D location;
QQuaternion orientation;
private:
int start;
int count;
bool useFlatColor;
GLfloat faceColor[4];
Geometry *geom;
friend class TileBuilder;
};
class TileBuilder
{
public:
enum { bl, br, tr, tl };
explicit TileBuilder(Geometry *, qreal depth = 0.0f, qreal size = 1.0f);
Tile *newTile(const QVector3D &loc = QVector3D()) const;
void setColor(QColor c) { color = c; }
protected:
void initialize(Tile *) const;
QVector<QVector3D> verts;
QVector<QVector2D> tex;
int start;
int count;
Geometry *geom;
QColor color;
};
class Cube : public QObject, public Tile
{
Q_OBJECT
Q_PROPERTY(qreal range READ range WRITE setRange)
Q_PROPERTY(qreal altitude READ altitude WRITE setAltitude)
Q_PROPERTY(qreal rotation READ rotation WRITE setRotation)
public:
explicit Cube(const QVector3D &loc = QVector3D());
~Cube();
qreal range() { return location.x(); }
void setRange(qreal r);
qreal altitude() { return location.y(); }
void setAltitude(qreal a);
qreal rotation() { return rot; }
void setRotation(qreal r);
void removeBounce();
void startAnimation();
void setAnimationPaused(bool paused);
Q_SIGNALS:
void changed();
private:
qreal rot;
QPropertyAnimation *r;
QPropertyAnimation *a;
QPropertyAnimation *rtn;
qreal startx;
friend class CubeBuilder;
};
class CubeBuilder : public TileBuilder
{
public:
explicit CubeBuilder(Geometry *, qreal depth = 0.0f, qreal size = 1.0f);
Cube *newCube(const QVector3D &loc = QVector3D()) const;
private:
mutable int ix;
};
///Hardware accelerated version of VideoWidget
class AcceleratedVideoWidget : public QGLWidget
{
Q_OBJECT
public:
explicit AcceleratedVideoWidget(QWidget* parent);
~AcceleratedVideoWidget();
private:
QGLPixelBuffer* m_pPixBuf;
QImage m_Image;
qreal aspect;
GLuint dynamicTexture;
GLuint cubeTexture;
bool hasDynamicTextureUpdate;
QGLPixelBuffer *pbuffer;
Geometry *geom;
Cube *cube;
Tile *backdrop;
QList<Cube *> cubes;
QList<Tile *> tiles;
void initializeGeometry();
void initPbuffer();
void initCommon();
void perspectiveProjection();
void orthographicProjection();
void drawPbuffer();
void setAnimationPaused(bool enable);
protected:
void initializeGL();
void resizeGL(int w, int h);
void paintGL();
void mousePressEvent(QMouseEvent *) { setAnimationPaused(true); }
void mouseReleaseEvent(QMouseEvent *) { setAnimationPaused(false); }
private Q_SLOTS:
void newFrameEvent();
};
#endif
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