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Diffstat (limited to 'src/plugins/qnx/camera/bbcamerafocuscontrol.cpp')
| -rw-r--r-- | src/plugins/qnx/camera/bbcamerafocuscontrol.cpp | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/src/plugins/qnx/camera/bbcamerafocuscontrol.cpp b/src/plugins/qnx/camera/bbcamerafocuscontrol.cpp new file mode 100644 index 000000000..e0b57d6c6 --- /dev/null +++ b/src/plugins/qnx/camera/bbcamerafocuscontrol.cpp @@ -0,0 +1,331 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Research In Motion +** 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. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#include "bbcamerafocuscontrol.h" + +#include "bbcamerasession.h" + +#include <QDebug> + +QT_BEGIN_NAMESPACE + +BbCameraFocusControl::BbCameraFocusControl(BbCameraSession *session, QObject *parent) + : QCameraFocusControl(parent) + , m_session(session) + , m_focusMode(QCameraFocus::FocusModes()) + , m_focusPointMode(QCameraFocus::FocusPointAuto) + , m_customFocusPoint(QPointF(0, 0)) +{ +} + +QCameraFocus::FocusModes BbCameraFocusControl::focusMode() const +{ + camera_focusmode_t focusMode = CAMERA_FOCUSMODE_OFF; + + const camera_error_t result = camera_get_focus_mode(m_session->handle(), &focusMode); + if (result != CAMERA_EOK) { + qWarning() << "Unable to retrieve focus mode from camera:" << result; + return QCameraFocus::FocusModes(); + } + + switch (focusMode) { + case CAMERA_FOCUSMODE_EDOF: + return QCameraFocus::HyperfocalFocus; + case CAMERA_FOCUSMODE_MANUAL: + return QCameraFocus::ManualFocus; + case CAMERA_FOCUSMODE_AUTO: + return QCameraFocus::AutoFocus; + case CAMERA_FOCUSMODE_MACRO: + return QCameraFocus::MacroFocus; + case CAMERA_FOCUSMODE_CONTINUOUS_AUTO: + return QCameraFocus::ContinuousFocus; + case CAMERA_FOCUSMODE_CONTINUOUS_MACRO: // fall through + case CAMERA_FOCUSMODE_OFF: // fall through + default: + return QCameraFocus::FocusModes(); + } +} + +void BbCameraFocusControl::setFocusMode(QCameraFocus::FocusModes mode) +{ + if (m_focusMode == mode) + return; + + camera_focusmode_t focusMode = CAMERA_FOCUSMODE_OFF; + + if (mode == QCameraFocus::HyperfocalFocus) + focusMode = CAMERA_FOCUSMODE_EDOF; + else if (mode == QCameraFocus::ManualFocus) + focusMode = CAMERA_FOCUSMODE_MANUAL; + else if (mode == QCameraFocus::AutoFocus) + focusMode = CAMERA_FOCUSMODE_AUTO; + else if (mode == QCameraFocus::MacroFocus) + focusMode = CAMERA_FOCUSMODE_MACRO; + else if (mode == QCameraFocus::ContinuousFocus) + focusMode = CAMERA_FOCUSMODE_CONTINUOUS_AUTO; + + const camera_error_t result = camera_set_focus_mode(m_session->handle(), focusMode); + + if (result != CAMERA_EOK) { + qWarning() << "Unable to set focus mode:" << result; + return; + } + + m_focusMode = mode; + emit focusModeChanged(m_focusMode); +} + +bool BbCameraFocusControl::isFocusModeSupported(QCameraFocus::FocusModes mode) const +{ + if (m_session->state() == QCamera::UnloadedState) + return false; + + if (mode == QCameraFocus::HyperfocalFocus) + return false; //TODO how to check? + else if (mode == QCameraFocus::ManualFocus) + return camera_has_feature(m_session->handle(), CAMERA_FEATURE_MANUALFOCUS); + else if (mode == QCameraFocus::AutoFocus) + return camera_has_feature(m_session->handle(), CAMERA_FEATURE_AUTOFOCUS); + else if (mode == QCameraFocus::MacroFocus) + return camera_has_feature(m_session->handle(), CAMERA_FEATURE_MACROFOCUS); + else if (mode == QCameraFocus::ContinuousFocus) + return camera_has_feature(m_session->handle(), CAMERA_FEATURE_AUTOFOCUS); + + return false; +} + +QCameraFocus::FocusPointMode BbCameraFocusControl::focusPointMode() const +{ + return m_focusPointMode; +} + +void BbCameraFocusControl::setFocusPointMode(QCameraFocus::FocusPointMode mode) +{ + if (m_session->status() != QCamera::ActiveStatus) + return; + + if (m_focusPointMode == mode) + return; + + m_focusPointMode = mode; + emit focusPointModeChanged(m_focusPointMode); + + if (m_focusPointMode == QCameraFocus::FocusPointAuto) { + //TODO: is this correct? + const camera_error_t result = camera_set_focus_regions(m_session->handle(), 0, 0); + if (result != CAMERA_EOK) { + qWarning() << "Unable to set focus region:" << result; + return; + } + + emit focusZonesChanged(); + } else if (m_focusPointMode == QCameraFocus::FocusPointCenter) { + // get the size of the viewfinder + int viewfinderWidth = 0; + int viewfinderHeight = 0; + + if (!retrieveViewfinderSize(&viewfinderWidth, &viewfinderHeight)) + return; + + // define a 40x40 pixel focus region in the center of the viewfinder + camera_region_t focusRegion; + focusRegion.left = (viewfinderWidth / 2) - 20; + focusRegion.top = (viewfinderHeight / 2) - 20; + focusRegion.width = 40; + focusRegion.height = 40; + + camera_error_t result = camera_set_focus_regions(m_session->handle(), 1, &focusRegion); + if (result != CAMERA_EOK) { + qWarning() << "Unable to set focus region:" << result; + return; + } + + // re-set focus mode to apply focus region changes + camera_focusmode_t focusMode = CAMERA_FOCUSMODE_OFF; + result = camera_get_focus_mode(m_session->handle(), &focusMode); + camera_set_focus_mode(m_session->handle(), focusMode); + + emit focusZonesChanged(); + + } else if (m_focusPointMode == QCameraFocus::FocusPointFaceDetection) { + //TODO: implement later + } else if (m_focusPointMode == QCameraFocus::FocusPointCustom) { + updateCustomFocusRegion(); + } +} + +bool BbCameraFocusControl::isFocusPointModeSupported(QCameraFocus::FocusPointMode mode) const +{ + if (m_session->state() == QCamera::UnloadedState) + return false; + + if (mode == QCameraFocus::FocusPointAuto) { + return camera_has_feature(m_session->handle(), CAMERA_FEATURE_AUTOFOCUS); + } else if (mode == QCameraFocus::FocusPointCenter) { + return camera_has_feature(m_session->handle(), CAMERA_FEATURE_REGIONFOCUS); + } else if (mode == QCameraFocus::FocusPointFaceDetection) { + return false; //TODO: implement via custom region in combination with face detection in viewfinder + } else if (mode == QCameraFocus::FocusPointCustom) { + return camera_has_feature(m_session->handle(), CAMERA_FEATURE_REGIONFOCUS); + } + + return false; +} + +QPointF BbCameraFocusControl::customFocusPoint() const +{ + return m_customFocusPoint; +} + +void BbCameraFocusControl::setCustomFocusPoint(const QPointF &point) +{ + if (m_customFocusPoint == point) + return; + + m_customFocusPoint = point; + emit customFocusPointChanged(m_customFocusPoint); + + updateCustomFocusRegion(); +} + +QCameraFocusZoneList BbCameraFocusControl::focusZones() const +{ + if (m_session->state() == QCamera::UnloadedState) + return QCameraFocusZoneList(); + + camera_region_t regions[20]; + int supported = 0; + int asked = 0; + camera_error_t result = camera_get_focus_regions(m_session->handle(), 20, &supported, &asked, regions); + + if (result != CAMERA_EOK) { + qWarning() << "Unable to retrieve focus regions:" << result; + return QCameraFocusZoneList(); + } + + // retrieve width and height of viewfinder + int viewfinderWidth = 0; + int viewfinderHeight = 0; + if (m_session->captureMode() & QCamera::CaptureStillImage) + result = camera_get_photovf_property(m_session->handle(), + CAMERA_IMGPROP_WIDTH, &viewfinderWidth, + CAMERA_IMGPROP_HEIGHT, &viewfinderHeight); + else if (m_session->captureMode() & QCamera::CaptureVideo) + result = camera_get_videovf_property(m_session->handle(), + CAMERA_IMGPROP_WIDTH, &viewfinderWidth, + CAMERA_IMGPROP_HEIGHT, &viewfinderHeight); + + if (result != CAMERA_EOK) { + qWarning() << "Unable to retrieve viewfinder size:" << result; + return QCameraFocusZoneList(); + } + + QCameraFocusZoneList list; + for (int i = 0; i < asked; ++i) { + const int x = regions[i].left; + const int y = regions[i].top; + const int width = regions[i].width; + const int height = regions[i].height; + + QRectF rect(static_cast<float>(x)/static_cast<float>(viewfinderWidth), + static_cast<float>(y)/static_cast<float>(viewfinderHeight), + static_cast<float>(width)/static_cast<float>(viewfinderWidth), + static_cast<float>(height)/static_cast<float>(viewfinderHeight)); + + list << QCameraFocusZone(rect, QCameraFocusZone::Focused); //TODO: how to know if a zone is unused/selected/focused?!? + } + + return list; +} + +void BbCameraFocusControl::updateCustomFocusRegion() +{ + // get the size of the viewfinder + int viewfinderWidth = 0; + int viewfinderHeight = 0; + + if (!retrieveViewfinderSize(&viewfinderWidth, &viewfinderHeight)) + return; + + // define a 40x40 pixel focus region around the custom focus point + camera_region_t focusRegion; + focusRegion.left = qMax(0, static_cast<int>(m_customFocusPoint.x() * viewfinderWidth) - 20); + focusRegion.top = qMax(0, static_cast<int>(m_customFocusPoint.y() * viewfinderHeight) - 20); + focusRegion.width = 40; + focusRegion.height = 40; + + camera_error_t result = camera_set_focus_regions(m_session->handle(), 1, &focusRegion); + if (result != CAMERA_EOK) { + qWarning() << "Unable to set focus region:" << result; + return; + } + + // re-set focus mode to apply focus region changes + camera_focusmode_t focusMode = CAMERA_FOCUSMODE_OFF; + result = camera_get_focus_mode(m_session->handle(), &focusMode); + camera_set_focus_mode(m_session->handle(), focusMode); + + emit focusZonesChanged(); +} + +bool BbCameraFocusControl::retrieveViewfinderSize(int *width, int *height) +{ + if (!width || !height) + return false; + + camera_error_t result = CAMERA_EOK; + if (m_session->captureMode() & QCamera::CaptureStillImage) + result = camera_get_photovf_property(m_session->handle(), + CAMERA_IMGPROP_WIDTH, width, + CAMERA_IMGPROP_HEIGHT, height); + else if (m_session->captureMode() & QCamera::CaptureVideo) + result = camera_get_videovf_property(m_session->handle(), + CAMERA_IMGPROP_WIDTH, width, + CAMERA_IMGPROP_HEIGHT, height); + + if (result != CAMERA_EOK) { + qWarning() << "Unable to retrieve viewfinder size:" << result; + return false; + } + + return true; +} + +QT_END_NAMESPACE |