DirectShow: Refactor camera backend.

Almost entire rewrite of the camera backend. It doesn't provide new
features but is more stable and behave as it should.

- Correctly report camera state and status
- Correctly report if the camera is ready to capture
- Emit imageExposed() signal
- Save captured images in an appropriate directory
- Images can be captured even without a viewport
- Better error handling

Removed the custom QVideoWidgetControl as it doesn't provide anything more
than the QVideoWidget's renderer control fallback.

Task-number: QTBUG-33782
Change-Id: I9baf6f83e7c69619f20a101921f7865a1c90d5e4
Reviewed-by: Christian Stromme <christian.stromme@digia.com>

1 files changed, 0 insertions, 150 deletions

diff --git a/src/plugins/directshow/camera/dsvideowidgetcontrol.h b/src/plugins/directshow/camera/dsvideowidgetcontrol.h
deleted file mode 100644
index 2a8775aee..000000000
--- a/src/plugins/directshow/camera/dsvideowidgetcontrol.h
+++ /dev/null
@@ -1,150 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part 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 DSVIDEOWIDGETCONTROL_H
-#define DSVIDEOWIDGETCONTROL_H
-
-#include <QtCore/qobject.h>
-#include <QtWidgets>
-#include <QtMultimedia/qvideoframe.h>
-#include <QtMultimedia/qabstractvideosurface.h>
-#include <QtMultimedia/qvideosurfaceformat.h>
-
-#include <qvideowidgetcontrol.h>
-#include "dscameracontrol.h"
-
-QT_BEGIN_NAMESPACE
-
-class DSVideoWidgetSurface : public QAbstractVideoSurface
-{
-     Q_OBJECT
- public:
-     DSVideoWidgetSurface(QLabel *pWidget, QObject *parent = 0);
-
-     QList<QVideoFrame::PixelFormat> supportedPixelFormats(
-             QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle) const;
-
-     bool present(const QVideoFrame &frame);
-
-     QRect videoRect() const { return targetRect; }
-     void updateVideoRect();
-
-     void paint(QPainter *painter);
-     void setImageFormat(QImage::Format fmt);
-
- private:
-     QLabel *widget;
-     QImage::Format imageFormat;
-     QRect targetRect;
-     QSize imageSize;
-     QRect sourceRect;
-     QPixmap* myPixmap;
- };
-
-class DSVideoWidgetControl : public QVideoWidgetControl
-{
-    Q_OBJECT
-
-    DSVideoWidgetSurface* surface;
-public: // Constructor & Destructor
-
-    DSVideoWidgetControl(DSCameraSession* session, QObject *parent = 0);
-    virtual ~DSVideoWidgetControl();
-
-public: // QVideoWidgetControl
-
-    QWidget *videoWidget();
-
-    // Aspect Ratio
-    Qt::AspectRatioMode aspectRatioMode() const;
-    void setAspectRatioMode(Qt::AspectRatioMode ratio);
-
-    // Full Screen
-    bool isFullScreen() const;
-    void setFullScreen(bool fullScreen);
-
-    // Brightness
-    int brightness() const;
-    void setBrightness(int brightness);
-
-    // Contrast
-    int contrast() const;
-    void setContrast(int contrast);
-
-    // Hue
-    int hue() const;
-    void setHue(int hue);
-
-    // Saturation
-    int saturation() const;
-    void setSaturation(int saturation);
-
-public: // Internal
-
-    bool eventFilter(QObject *object, QEvent *event);
-
-/*
-Q_SIGNALS: // QVideoWidgetControl
-
-    void fullScreenChanged(bool fullScreen);
-    void brightnessChanged(int brightness);
-    void contrastChanged(int contrast);
-    void hueChanged(int hue);
-    void saturationChanged(int saturation);
-*/
-
-Q_SIGNALS: // Internal Signals
-
-    void widgetResized(QSize size);
-    void widgetUpdated();
-
-private: // Data
-
-    DSCameraSession*    m_session;
-    QLabel              *m_widget;
-    WId                 m_windowId;
-    Qt::AspectRatioMode m_aspectRatioMode;
-    bool                m_fullScreen;
-};
-
-QT_END_NAMESPACE
-
-#endif // DSVideoWidgetControl_H