1 files changed, 171 insertions, 0 deletions
diff --git a/src/plugins/gstreamer/camerabin/camerabinimageprocessing.cpp b/src/plugins/gstreamer/camerabin/camerabinimageprocessing.cpp
new file mode 100644
index 000000000..075ff2a67
--- /dev/null
+++ b/src/plugins/gstreamer/camerabin/camerabinimageprocessing.cpp
@@ -0,0 +1,171 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "camerabinimageprocessing.h"
+#include "camerabinsession.h"
+
+CameraBinImageProcessing::CameraBinImageProcessing(CameraBinSession *session)
+    :QCameraImageProcessingControl(session),
+     m_session(session)
+{
+    m_mappedWbValues[GST_PHOTOGRAPHY_WB_MODE_AUTO] = QCameraImageProcessing::WhiteBalanceAuto;
+    m_mappedWbValues[GST_PHOTOGRAPHY_WB_MODE_DAYLIGHT] = QCameraImageProcessing::WhiteBalanceSunlight;
+    m_mappedWbValues[GST_PHOTOGRAPHY_WB_MODE_CLOUDY] = QCameraImageProcessing::WhiteBalanceCloudy;
+    m_mappedWbValues[GST_PHOTOGRAPHY_WB_MODE_SUNSET] = QCameraImageProcessing::WhiteBalanceSunset;
+    m_mappedWbValues[GST_PHOTOGRAPHY_WB_MODE_TUNGSTEN] = QCameraImageProcessing::WhiteBalanceTungsten;
+    m_mappedWbValues[GST_PHOTOGRAPHY_WB_MODE_FLUORESCENT] = QCameraImageProcessing::WhiteBalanceFluorescent;
+
+    updateColorBalanceValues();
+}
+
+CameraBinImageProcessing::~CameraBinImageProcessing()
+{
+}
+
+void CameraBinImageProcessing::updateColorBalanceValues()
+{
+    if (!GST_IS_COLOR_BALANCE(m_session->cameraBin())) {
+        // Camerabin doesn't implement gstcolorbalance interface
+        return;
+    }
+
+    GstColorBalance *balance = GST_COLOR_BALANCE(m_session->cameraBin());
+    const GList *controls = gst_color_balance_list_channels(balance);
+
+    const GList *item;
+    GstColorBalanceChannel *channel;
+    gint cur_value;
+
+    for (item = controls; item; item = g_list_next (item)) {
+        channel = (GstColorBalanceChannel *)item->data;
+        cur_value = gst_color_balance_get_value (balance, channel);
+
+        if (!g_ascii_strcasecmp (channel->label, "brightness")) {
+            m_values[QCameraImageProcessingControl::Brightness] = cur_value;
+        } else if (!g_ascii_strcasecmp (channel->label, "contrast")) {
+            m_values[QCameraImageProcessingControl::Contrast] = cur_value;
+        } else if (!g_ascii_strcasecmp (channel->label, "saturation")) {
+            m_values[QCameraImageProcessingControl::Saturation] = cur_value;
+        }
+    }
+}
+
+bool CameraBinImageProcessing::setColorBalanceValue(const QString& channel, int value)
+{
+
+    if (!GST_IS_COLOR_BALANCE(m_session->cameraBin())) {
+        // Camerabin doesn't implement gstcolorbalance interface
+        return false;
+    }
+
+    GstColorBalance *balance = GST_COLOR_BALANCE(m_session->cameraBin());
+    const GList *controls = gst_color_balance_list_channels(balance);
+
+    const GList *item;
+    GstColorBalanceChannel *colorBalanceChannel;
+
+    for (item = controls; item; item = g_list_next (item)) {
+        colorBalanceChannel = (GstColorBalanceChannel *)item->data;
+
+        if (!g_ascii_strcasecmp (colorBalanceChannel->label, channel.toAscii())) {
+            gst_color_balance_set_value (balance, colorBalanceChannel, value);
+            return true;
+        }
+    }
+
+    return false;
+}
+
+QCameraImageProcessing::WhiteBalanceMode CameraBinImageProcessing::whiteBalanceMode() const
+{
+    GstWhiteBalanceMode wbMode;
+    gst_photography_get_white_balance_mode(m_session->photography(), &wbMode);
+    return m_mappedWbValues[wbMode];
+}
+
+void CameraBinImageProcessing::setWhiteBalanceMode(QCameraImageProcessing::WhiteBalanceMode mode)
+{
+    if (isWhiteBalanceModeSupported(mode))
+        gst_photography_set_white_balance_mode(m_session->photography(), m_mappedWbValues.key(mode));
+}
+
+bool CameraBinImageProcessing::isWhiteBalanceModeSupported(QCameraImageProcessing::WhiteBalanceMode mode) const
+{
+    return m_mappedWbValues.values().contains(mode);
+}
+
+bool CameraBinImageProcessing::isProcessingParameterSupported(QCameraImageProcessingControl::ProcessingParameter parameter) const
+{
+    return parameter == QCameraImageProcessingControl::Contrast
+            || parameter == QCameraImageProcessingControl::Brightness
+            || parameter == QCameraImageProcessingControl::Saturation;
+}
+
+QVariant CameraBinImageProcessing::processingParameter(
+        QCameraImageProcessingControl::ProcessingParameter parameter) const
+{
+    if (m_values.contains(parameter))
+        return m_values.value(parameter);
+    else
+        return QVariant();
+}
+
+void CameraBinImageProcessing::setProcessingParameter(
+        QCameraImageProcessingControl::ProcessingParameter parameter,
+        QVariant value)
+{
+    switch (parameter) {
+    case Contrast:
+        setColorBalanceValue("contrast", value.toInt());
+        break;
+    case Brightness:
+        setColorBalanceValue("brightness", value.toInt());
+        break;
+    case Saturation:
+        setColorBalanceValue("saturation", value.toInt());
+        break;
+    default:
+        break;
+    }
+
+    updateColorBalanceValues();
+}
+