Introducing a multimedia plugin for blackberry.

Change-Id: I15677556eb7f5cf096ad857109e9acfeba4e6e84
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 413 insertions, 0 deletions

diff --git a/plugins/multimedia/blackberry/bbvideowindowcontrol.cpp b/plugins/multimedia/blackberry/bbvideowindowcontrol.cpp
new file mode 100644
index 0000000000..227078fe83
--- /dev/null
+++ b/plugins/multimedia/blackberry/bbvideowindowcontrol.cpp
@@ -0,0 +1,413 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Research In Motion
+**
+** Contact: Research In Motion <blackberry-qt@qnx.com>
+** Contact: Klarälvdalens Datakonsult AB <info@kdab.com>
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "bbvideowindowcontrol.h"
+#include "bbutil.h"
+#include <QtCore/qdebug.h>
+#include <QtGui/qapplication.h>
+#include <QtGui/qdesktopwidget.h>
+#include <QtGui/qplatformnativeinterface_qpa.h>
+#include <bps/screen.h>
+
+QT_BEGIN_NAMESPACE
+
+static int winIdCounter = 0;
+
+BbVideoWindowControl::BbVideoWindowControl(QObject *parent)
+    : QVideoWindowControl(parent),
+      m_videoId(-1),
+      m_widget(0),
+      m_context(0),
+      m_fullscreen(false),
+      m_aspectRatioMode(Qt::IgnoreAspectRatio),
+      m_window(0),
+      m_hue(0),
+      m_brightness(0),
+      m_contrast(0),
+      m_saturation(0)
+{
+}
+
+BbVideoWindowControl::~BbVideoWindowControl()
+{
+}
+
+WId BbVideoWindowControl::winId() const
+{
+    if (m_widget)
+        return m_widget->winId();
+    return 0;
+}
+
+void BbVideoWindowControl::setWinId(WId id)
+{
+    if (id != 0)
+        setWidget(QWidget::find(id));
+}
+
+void BbVideoWindowControl::setWidget(QWidget *widget)
+{
+    m_widget = widget;
+
+    QPalette palette = m_widget->palette();
+    palette.setColor(m_widget->backgroundRole(), Qt::black);
+    m_widget->setPalette(palette);
+    m_widget->setAutoFillBackground(true);
+}
+
+QRect BbVideoWindowControl::displayRect() const
+{
+    return m_displayRect ;
+}
+
+void BbVideoWindowControl::setDisplayRect(const QRect &rect)
+{
+    if (m_displayRect != rect) {
+        m_displayRect = rect;
+        updateVideoPosition();
+    }
+}
+
+bool BbVideoWindowControl::isFullScreen() const
+{
+    return m_fullscreen;
+}
+
+void BbVideoWindowControl::setFullScreen(bool fullScreen)
+{
+    if (m_fullscreen != fullScreen) {
+        m_fullscreen = fullScreen;
+        updateVideoPosition();
+        emit fullScreenChanged(m_fullscreen);
+    }
+}
+
+void BbVideoWindowControl::repaint()
+{
+    // Nothing we can or should do here
+}
+
+QSize BbVideoWindowControl::nativeSize() const
+{
+    return QSize(m_metaData.width(), m_metaData.height());
+}
+
+Qt::AspectRatioMode BbVideoWindowControl::aspectRatioMode() const
+{
+    return m_aspectRatioMode;
+}
+
+void BbVideoWindowControl::setAspectRatioMode(Qt::AspectRatioMode mode)
+{
+    m_aspectRatioMode = mode;
+}
+
+int BbVideoWindowControl::brightness() const
+{
+    return m_brightness;
+}
+
+void BbVideoWindowControl::setBrightness(int brightness)
+{
+    if (m_brightness != brightness) {
+        m_brightness = brightness;
+        updateBrightness();
+        emit brightnessChanged(m_brightness);
+    }
+}
+
+int BbVideoWindowControl::contrast() const
+{
+    return m_contrast;
+}
+
+void BbVideoWindowControl::setContrast(int contrast)
+{
+    if (m_contrast != contrast) {
+        m_contrast = contrast;
+        updateContrast();
+        emit contrastChanged(m_contrast);
+    }
+}
+
+int BbVideoWindowControl::hue() const
+{
+    return m_hue;
+}
+
+void BbVideoWindowControl::setHue(int hue)
+{
+    if (m_hue != hue) {
+        m_hue = hue;
+        updateHue();
+        emit hueChanged(m_hue);
+    }
+}
+
+int BbVideoWindowControl::saturation() const
+{
+    return m_saturation;
+}
+
+void BbVideoWindowControl::setSaturation(int saturation)
+{
+    if (m_saturation != saturation) {
+        m_saturation = saturation;
+        updateSaturation();
+        emit saturationChanged(m_saturation);
+    }
+}
+
+void BbVideoWindowControl::attachDisplay(mmr_context_t *context)
+{
+    if (m_videoId != -1) {
+        qDebug() << "BbVideoWindowControl: Video output already attached!";
+        return;
+    }
+
+    if (!context) {
+        qDebug() << "BbVideoWindowControl: No media player context!";
+        return;
+    }
+
+    if (!m_widget) {
+        qDebug() << "BbVideoWindowControl: No video widget!";
+        return;
+    }
+
+    QPlatformNativeInterface * const nativeInterface = QApplication::platformNativeInterface();
+    if (!nativeInterface) {
+        qDebug() << "BbVideoWindowControl: Unable to get platform native interface. Qt too old?";
+        return;
+    }
+
+    const char * const groupNameData = static_cast<const char *>(
+        nativeInterface->nativeResourceForWidget("windowGroup", m_widget));
+    if (!groupNameData) {
+        qDebug() << "BbVideoWindowControl: Unable to find window group for widget" << m_widget;
+        return;
+    }
+
+    const QString groupName = QString::fromAscii(groupNameData);
+    m_windowName = QString("BbVideoWindowControl_%1_%2").arg(winIdCounter++)
+                                                        .arg(QCoreApplication::applicationPid());
+    // Start with an invisible window. If it would be visible right away, it would be at the wrong
+    // position, and we can only change the position once we get the window handle.
+    const QString videoDeviceUrl =
+            QString("screen:?winid=%1&wingrp=%2&initflags=invisible&nodstviewport=1").arg(m_windowName).arg(groupName);
+
+    m_videoId = mmr_output_attach(context, videoDeviceUrl.toAscii(), "video");
+    if (m_videoId == -1) {
+        qDebug() << mmErrorMessage("mmr_output_attach() for video failed", context);
+        return;
+    }
+
+    m_context = context;
+    updateVideoPosition();
+    updateHue();
+    updateContrast();
+    updateBrightness();
+    updateSaturation();
+}
+
+void BbVideoWindowControl::updateVideoPosition()
+{
+    if (m_context && m_videoId != -1 && m_widget) {
+        QPoint topLeft = m_fullscreen ?
+                                   QPoint(0,0) :
+                                   m_widget->mapToGlobal(m_displayRect.topLeft());
+        int width = m_fullscreen ?
+                        QApplication::desktop()->width() :
+                        m_displayRect.width();
+        int height = m_fullscreen ?
+                               QApplication::desktop()->height() :
+                               m_displayRect.height();
+
+        if (m_metaData.hasVideo()) { // We need the source size to do aspect ratio scaling
+            const qreal sourceRatio = m_metaData.width() / static_cast<float>(m_metaData.height());
+            const qreal targetRatio = width / static_cast<float>(height);
+
+            if (m_aspectRatioMode == Qt::KeepAspectRatio) {
+                if (targetRatio < sourceRatio) {
+                    // Need to make height smaller
+                    const int newHeight = width / sourceRatio;
+                    const int heightDiff = height - newHeight;
+                    topLeft.ry() += heightDiff / 2;
+                    height = newHeight;
+                } else {
+                    // Need to make width smaller
+                    const int newWidth = sourceRatio * height;
+                    const int widthDiff = width - newWidth;
+                    topLeft.rx() += widthDiff / 2;
+                    width = newWidth;
+                }
+
+            } else if (m_aspectRatioMode == Qt::KeepAspectRatioByExpanding) {
+                if (targetRatio < sourceRatio) {
+                    // Need to make width larger
+                    const int newWidth = sourceRatio * height;
+                    const int widthDiff = newWidth - width;
+                    topLeft.rx() -= widthDiff / 2;
+                    width = newWidth;
+                } else {
+                    // Need to make height larger
+                    const int newHeight = width / sourceRatio;
+                    const int heightDiff = newHeight - height;
+                    topLeft.ry() -= heightDiff / 2;
+                    height = newHeight;
+                }
+            }
+        }
+
+        if (m_window != 0) {
+            const int position[2] = { topLeft.x(), topLeft.y() };
+            const int size[2] = { width, height };
+            if (screen_set_window_property_iv(m_window, SCREEN_PROPERTY_POSITION, position) != 0)
+                perror("Setting video position failed");
+            if (screen_set_window_property_iv(m_window, SCREEN_PROPERTY_SIZE, size) != 0)
+                perror("Setting video size failed");
+        }
+    }
+}
+
+void BbVideoWindowControl::updateBrightness()
+{
+    if (m_window != 0) {
+        const int backendValue = m_brightness * 2.55f;
+        if (screen_set_window_property_iv(m_window, SCREEN_PROPERTY_BRIGHTNESS, &backendValue) != 0)
+            perror("Setting brightness failed");
+    }
+}
+
+void BbVideoWindowControl::updateContrast()
+{
+    if (m_window != 0) {
+        const int backendValue = m_contrast * 1.27f;
+        if (screen_set_window_property_iv(m_window, SCREEN_PROPERTY_CONTRAST, &backendValue) != 0)
+            perror("Setting contrast failed");
+    }
+}
+
+void BbVideoWindowControl::updateHue()
+{
+    if (m_window != 0) {
+        const int backendValue = m_hue * 1.27f;
+        if (screen_set_window_property_iv(m_window, SCREEN_PROPERTY_HUE, &backendValue) != 0)
+            perror("Setting hue failed");
+    }
+}
+
+void BbVideoWindowControl::updateSaturation()
+{
+    if (m_window != 0) {
+        const int backendValue = m_saturation * 1.27f;
+        if (screen_set_window_property_iv(m_window, SCREEN_PROPERTY_SATURATION, &backendValue) != 0)
+            perror("Setting saturation failed");
+    }
+}
+
+void BbVideoWindowControl::detachDisplay()
+{
+    if (m_context && m_videoId != -1)
+        mmr_output_detach(m_context, m_videoId);
+
+    m_context = 0;
+    m_videoId = -1;
+    m_metaData.clear();
+    m_windowName.clear();
+    m_window = 0;
+    m_hue = 0;
+    m_brightness = 0;
+    m_contrast = 0;
+    m_saturation = 0;
+}
+
+void BbVideoWindowControl::setMetaData(const BbMetaData &metaData)
+{
+    m_metaData = metaData;
+    emit nativeSizeChanged();
+
+    // To handle the updated source size data
+    updateVideoPosition();
+}
+
+void BbVideoWindowControl::bpsEventHandler(bps_event_t *event)
+{
+    if (event && bps_event_get_domain(event) == screen_get_domain()) {
+        const screen_event_t screen_event = screen_event_get_event(event);
+
+        int eventType;
+        if (screen_get_event_property_iv(screen_event, SCREEN_PROPERTY_TYPE, &eventType) != 0) {
+            perror("BbVideoWindowControl: Failed to query screen event type");
+            return;
+        }
+
+        if (eventType != SCREEN_EVENT_CREATE)
+            return;
+
+        screen_window_t window = 0;
+        if (screen_get_event_property_pv(screen_event, SCREEN_PROPERTY_WINDOW, (void**)&window) != 0) {
+            perror("BbVideoWindowControl: Failed to query window property");
+            return;
+        }
+
+        const int maxIdStrLength = 128;
+        char idString[maxIdStrLength];
+        if (screen_get_window_property_cv(window, SCREEN_PROPERTY_ID_STRING, maxIdStrLength, idString) != 0) {
+            perror("BbVideoWindowControl: Failed to query window ID string");
+            return;
+        }
+
+        if (m_windowName == idString) {
+            m_window = window;
+            updateVideoPosition();
+
+            const int visibleFlag = 1;
+            if (screen_set_window_property_iv(m_window, SCREEN_PROPERTY_VISIBLE, &visibleFlag) != 0) {
+                perror("BbVideoWindowControl: Failed to make window visible");
+                return;
+            }
+        }
+    }
+}
+
+QT_END_NAMESPACE