1 /*  This file is part of the KDE project.

     2 

     3     Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 

     5     This library is free software: you can redistribute it and/or modify

     6     it under the terms of the GNU Lesser General Public License as published by

     7     the Free Software Foundation, either version 2.1 or 3 of the License.

     8 

     9     This library is distributed in the hope that it will be useful,

    10     but WITHOUT ANY WARRANTY; without even the implied warranty of

    11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12     GNU Lesser General Public License for more details.

    13 

    14     You should have received a copy of the GNU Lesser General Public License

    15     along with this library.  If not, see <http://www.gnu.org/licenses/>.

    16 */

    17 

    18 #ifndef Phonon_GSTREAMER_GLRENDERER_H

    19 #define Phonon_GSTREAMER_GLRENDERER_H

    20 

    21 #include "videowidget.h"

    22 #include "common.h"

    23 

    24 #ifndef QT_NO_OPENGL

    25 

    26 #include <QtOpenGL/QGLFormat>

    27 #include <QtOpenGL/QGLWidget>

    28 

    29 #ifndef QT_OPENGL_ES

    30 QT_BEGIN_NAMESPACE

    31 

    32 class QString;

    33 

    34 namespace Phonon

    35 {

    36 namespace Gstreamer

    37 {

    38 class GLRenderWidgetImplementation;

    39 

    40 class GLRenderer : public AbstractRenderer

    41 {

    42 public:

    43     GLRenderer(VideoWidget *control);

    44     ~GLRenderer();

    45     void handleMediaNodeEvent(const MediaNodeEvent *event);

    46     bool eventFilter(QEvent * event);

    47     bool paintsOnWidget() { return false; }

    48 private:

    49     GLRenderWidgetImplementation *m_glWindow;

    50 };

    51 

    52 class GLRenderWidgetImplementation : public QGLWidget

    53 {

    54     Q_OBJECT

    55 

    56     // ARB_fragment_program

    57     typedef void (*_glProgramStringARB) (GLenum, GLenum, GLsizei, const GLvoid *);

    58     typedef void (*_glBindProgramARB) (GLenum, GLuint);

    59     typedef void (*_glDeleteProgramsARB) (GLsizei, const GLuint *);

    60     typedef void (*_glGenProgramsARB) (GLsizei, GLuint *);

    61     typedef void (*_glActiveTexture) (GLenum);

    62 public:

    63     GLRenderWidgetImplementation(VideoWidget *control, const QGLFormat &format);

    64     void paintEvent(QPaintEvent *event);

    65     GstElement *createVideoSink();

    66     void updateTexture(const QByteArray &array, int width, int height);

    67     bool hasYUVSupport() const;

    68     const QImage& currentFrame() const;

    69     QRect drawFrameRect() const { return m_drawFrameRect; }

    70     bool frameIsSet() const { return !m_array.isNull(); }

    71     void setNextFrame(const QByteArray &array, int width, int height);

    72     void clearFrame();

    73 private:

    74     _glProgramStringARB glProgramStringARB;

    75     _glBindProgramARB glBindProgramARB;

    76     _glDeleteProgramsARB glDeleteProgramsARB;

    77     _glGenProgramsARB glGenProgramsARB;

    78     _glActiveTexture glActiveTexture;

    79 

    80     mutable QImage m_frame;

    81     QByteArray m_array;

    82     int m_width;

    83     int m_height;

    84     QRect m_drawFrameRect;

    85     GLuint m_texture[3];

    86 

    87     bool m_hasPrograms;

    88     GLuint m_program;

    89     bool m_yuvSupport;

    90     VideoWidget *m_videoWidget;

    91 };

    92 

    93 }

    94 } //namespace Phonon::Gstreamer

    95 

    96 QT_END_NAMESPACE

    97 

    98 #endif //QT_OPENGL_ES

    99 #endif // QT_NO_OPENGL

   100 

   101 #endif // Phonon_GSTREAMER_GLRENDERER_H