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/*
* Copyright (C) 2013-2015 Canonical, Ltd.
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License version 3, as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranties of MERCHANTABILITY,
* SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// local
#include "screen.h"
#include "logging.h"
// Mir
#include "mir/geometry/size.h"
// Qt
#include <QCoreApplication>
#include <qpa/qwindowsysteminterface.h>
#include <QtSensors/QOrientationSensor>
#include <QtSensors/QOrientationReading>
#include <QThread>
// Qt sensors
#include <QtSensors/QOrientationReading>
#include <QtSensors/QOrientationSensor>
namespace mg = mir::geometry;
Q_LOGGING_CATEGORY(QTMIR_SENSOR_MESSAGES, "qtmir.sensor")
namespace {
bool isLittleEndian() {
unsigned int i = 1;
char *c = (char*)&i;
return *c == 1;
}
enum QImage::Format qImageFormatFromMirPixelFormat(MirPixelFormat mirPixelFormat) {
switch (mirPixelFormat) {
case mir_pixel_format_abgr_8888:
if (isLittleEndian()) {
// 0xRR,0xGG,0xBB,0xAA
return QImage::Format_RGBA8888;
} else {
// 0xAA,0xBB,0xGG,0xRR
qFatal("[mirserver QPA] "
"Qt doesn't support mir_pixel_format_abgr_8888 in a big endian architecture");
}
break;
case mir_pixel_format_xbgr_8888:
if (isLittleEndian()) {
// 0xRR,0xGG,0xBB,0xXX
return QImage::Format_RGBX8888;
} else {
// 0xXX,0xBB,0xGG,0xRR
qFatal("[mirserver QPA] "
"Qt doesn't support mir_pixel_format_xbgr_8888 in a big endian architecture");
}
break;
break;
case mir_pixel_format_argb_8888:
// 0xAARRGGBB
return QImage::Format_ARGB32;
break;
case mir_pixel_format_xrgb_8888:
// 0xffRRGGBB
return QImage::Format_RGB32;
break;
case mir_pixel_format_bgr_888:
qFatal("[mirserver QPA] Qt doesn't support mir_pixel_format_bgr_888");
break;
default:
qFatal("[mirserver QPA] Unknown mir pixel format");
break;
}
}
} // namespace {
class OrientationReadingEvent : public QEvent {
public:
OrientationReadingEvent(QEvent::Type type, QOrientationReading::Orientation orientation)
: QEvent(type)
, m_orientation(orientation) {
}
static const QEvent::Type m_type;
QOrientationReading::Orientation m_orientation;
};
const QEvent::Type OrientationReadingEvent::m_type =
static_cast<QEvent::Type>(QEvent::registerEventType());
bool Screen::skipDBusRegistration = false;
Screen::Screen(mir::graphics::DisplayConfigurationOutput const &screen)
: QObject(nullptr)
, m_orientationSensor(new QOrientationSensor(this))
, m_unityScreen(nullptr)
{
readMirDisplayConfiguration(screen);
// Set the default orientation based on the initial screen dimmensions.
m_nativeOrientation = (m_geometry.width() >= m_geometry.height())
? Qt::LandscapeOrientation : Qt::PortraitOrientation;
qCDebug(QTMIR_SENSOR_MESSAGES) << "Screen - nativeOrientation is:" << m_nativeOrientation;
// If it's a landscape device (i.e. some tablets), start in landscape, otherwise portrait
m_currentOrientation = (m_nativeOrientation == Qt::LandscapeOrientation)
? Qt::LandscapeOrientation : Qt::PortraitOrientation;
qCDebug(QTMIR_SENSOR_MESSAGES) << "Screen - initial currentOrientation is:" << m_currentOrientation;
QObject::connect(m_orientationSensor, &QOrientationSensor::readingChanged,
this, &Screen::onOrientationReadingChanged);
m_orientationSensor->start();
if (!skipDBusRegistration) {
// FIXME This is a unity8 specific dbus call and shouldn't be in qtmir
m_unityScreen = new QDBusInterface("com.canonical.Unity.Screen",
"/com/canonical/Unity/Screen",
"com.canonical.Unity.Screen",
QDBusConnection::systemBus(), this);
m_unityScreen->connection().connect("com.canonical.Unity.Screen",
"/com/canonical/Unity/Screen",
"com.canonical.Unity.Screen",
"DisplayPowerStateChange",
this,
SLOT(onDisplayPowerStateChanged(int, int)));
}
}
bool Screen::orientationSensorEnabled()
{
return m_orientationSensor->isActive();
}
void Screen::onDisplayPowerStateChanged(int status, int reason)
{
Q_UNUSED(reason);
toggleSensors(status);
}
void Screen::readMirDisplayConfiguration(mir::graphics::DisplayConfigurationOutput const &screen)
{
// Physical screen size
m_physicalSize.setWidth(screen.physical_size_mm.width.as_float());
m_physicalSize.setHeight(screen.physical_size_mm.height.as_float());
// Pixel Format
m_format = qImageFormatFromMirPixelFormat(screen.current_format);
// Pixel depth
m_depth = 8 * MIR_BYTES_PER_PIXEL(screen.current_format);
// Mode = Resolution & refresh rate
mir::graphics::DisplayConfigurationMode mode = screen.modes.at(screen.current_mode_index);
m_geometry.setWidth(mode.size.width.as_int());
m_geometry.setHeight(mode.size.height.as_int());
m_refreshRate = mode.vrefresh_hz;
}
void Screen::toggleSensors(const bool enable) const
{
qCDebug(QTMIR_SENSOR_MESSAGES) << "Screen::toggleSensors - enable=" << enable;
if (enable) {
m_orientationSensor->start();
} else {
m_orientationSensor->stop();
}
}
void Screen::customEvent(QEvent* event)
{
OrientationReadingEvent* oReadingEvent = static_cast<OrientationReadingEvent*>(event);
switch (oReadingEvent->m_orientation) {
case QOrientationReading::LeftUp: {
m_currentOrientation = (m_nativeOrientation == Qt::LandscapeOrientation) ?
Qt::InvertedPortraitOrientation : Qt::LandscapeOrientation;
break;
}
case QOrientationReading::TopUp: {
m_currentOrientation = (m_nativeOrientation == Qt::LandscapeOrientation) ?
Qt::LandscapeOrientation : Qt::PortraitOrientation;
break;
}
case QOrientationReading::RightUp: {
m_currentOrientation = (m_nativeOrientation == Qt::LandscapeOrientation) ?
Qt::PortraitOrientation : Qt::InvertedLandscapeOrientation;
break;
}
case QOrientationReading::TopDown: {
m_currentOrientation = (m_nativeOrientation == Qt::LandscapeOrientation) ?
Qt::InvertedLandscapeOrientation : Qt::InvertedPortraitOrientation;
break;
}
default: {
qWarning("Unknown orientation.");
event->accept();
return;
}
}
// Raise the event signal so that client apps know the orientation changed
QWindowSystemInterface::handleScreenOrientationChange(screen(), m_currentOrientation);
event->accept();
qCDebug(QTMIR_SENSOR_MESSAGES) << "Screen::customEvent - new orientation" << m_currentOrientation << "handled";
}
void Screen::onOrientationReadingChanged()
{
qCDebug(QTMIR_SENSOR_MESSAGES) << "Screen::onOrientationReadingChanged";
// Make sure to switch to the main Qt thread context
QCoreApplication::postEvent(this, new OrientationReadingEvent(
OrientationReadingEvent::m_type,
m_orientationSensor->reading()->orientation()));
}
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