src/multimedia/qpaintervideosurface_p.h
changeset 0 876b1a06bc25
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/multimedia/qpaintervideosurface_p.h	Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,183 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPAINTERVIDEOSURFACE_P_H
+#define QPAINTERVIDEOSURFACE_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 <qmobilityglobal.h>
+#include <QtCore/qsize.h>
+#include <QtGui/qimage.h>
+#include <QtGui/qmatrix4x4.h>
+#include <QtGui/qpaintengine.h>
+#include <qabstractvideosurface.h>
+#include <qvideoframe.h>
+
+QT_BEGIN_NAMESPACE
+class QGLContext;
+QT_END_NAMESPACE
+
+QT_USE_NAMESPACE
+
+QT_BEGIN_NAMESPACE
+
+class QVideoSurfacePainter
+{
+public:
+    virtual ~QVideoSurfacePainter();
+
+    virtual QList<QVideoFrame::PixelFormat> supportedPixelFormats(
+            QAbstractVideoBuffer::HandleType handleType) const = 0;
+
+    virtual bool isFormatSupported(
+            const QVideoSurfaceFormat &format, QVideoSurfaceFormat *similar) const = 0;
+
+    virtual QAbstractVideoSurface::Error start(const QVideoSurfaceFormat &format) = 0;
+    virtual void stop() = 0;
+
+    virtual QAbstractVideoSurface::Error setCurrentFrame(const QVideoFrame &frame) = 0;
+
+    virtual QAbstractVideoSurface::Error paint(
+            const QRectF &target, QPainter *painter, const QRectF &source) = 0;
+
+    virtual void updateColors(int brightness, int contrast, int hue, int saturation) = 0;
+    virtual void viewportDestroyed() {}
+};
+
+
+class Q_AUTOTEST_EXPORT QPainterVideoSurface : public QAbstractVideoSurface
+{
+    Q_OBJECT
+public:
+    explicit QPainterVideoSurface(QObject *parent = 0);
+    ~QPainterVideoSurface();
+
+    QList<QVideoFrame::PixelFormat> supportedPixelFormats(
+            QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle) const;
+
+    bool isFormatSupported(
+            const QVideoSurfaceFormat &format, QVideoSurfaceFormat *similar = 0) const;
+
+    bool start(const QVideoSurfaceFormat &format);
+    void stop();
+
+    bool present(const QVideoFrame &frame);
+
+    int brightness() const;
+    void setBrightness(int brightness);
+
+    int contrast() const;
+    void setContrast(int contrast);
+
+    int hue() const;
+    void setHue(int hue);
+
+    int saturation() const;
+    void setSaturation(int saturation);
+
+    bool isReady() const;
+    void setReady(bool ready);
+
+    void paint(QPainter *painter, const QRectF &target, const QRectF &source = QRectF(0, 0, 1, 1));
+
+#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1)
+    const QGLContext *glContext() const;
+    void setGLContext(QGLContext *context);
+
+    enum ShaderType
+    {
+        NoShaders = 0x00,
+        FragmentProgramShader = 0x01,
+        GlslShader = 0x02
+    };
+
+    Q_DECLARE_FLAGS(ShaderTypes, ShaderType)
+
+    ShaderTypes supportedShaderTypes() const;
+
+    ShaderType shaderType() const;
+    void setShaderType(ShaderType type);
+#endif
+
+public Q_SLOTS:
+    void viewportDestroyed();
+
+Q_SIGNALS:
+    void frameChanged();
+
+private:
+    void createPainter();
+
+    QVideoSurfacePainter *m_painter;
+#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1)
+    QGLContext *m_glContext;
+    ShaderTypes m_shaderTypes;
+    ShaderType m_shaderType;
+#endif
+    int m_brightness;
+    int m_contrast;
+    int m_hue;
+    int m_saturation;
+
+    QVideoFrame::PixelFormat m_pixelFormat;
+    QSize m_frameSize;
+    QRect m_sourceRect;
+    bool m_colorsDirty;
+    bool m_ready;
+};
+
+#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1)
+Q_DECLARE_OPERATORS_FOR_FLAGS(QPainterVideoSurface::ShaderTypes)
+#endif
+
+QT_END_NAMESPACE
+
+#endif