diff options
Diffstat (limited to 'src/plugins/platforms/kms/qkmsdevice.cpp')
-rw-r--r-- | src/plugins/platforms/kms/qkmsdevice.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/plugins/platforms/kms/qkmsdevice.cpp b/src/plugins/platforms/kms/qkmsdevice.cpp new file mode 100644 index 0000000000..e0fac5611d --- /dev/null +++ b/src/plugins/platforms/kms/qkmsdevice.cpp @@ -0,0 +1,163 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 <QDebug> +#include "qkmsscreen.h" +#include "qkmsdevice.h" + +#include "qkmsintegration.h" + +#include <QtCore/QSocketNotifier> +#include <QtCore/private/qcore_unix_p.h> + +QT_BEGIN_NAMESPACE + +QKmsDevice::QKmsDevice(const QString &path, QKmsIntegration *parent) : + QObject(0), m_integration(parent) +{ + m_fd = QT_OPEN(path.toAscii().constData(), O_RDWR); + if (m_fd < 0) { + qWarning("Could not open %s.", path.toAscii().constData()); + qFatal("No DRM display device"); + } + + m_graphicsBufferManager = gbm_create_device(m_fd); + m_eglDisplay = eglGetDisplay(m_graphicsBufferManager); + + if (m_eglDisplay == EGL_NO_DISPLAY) { + qWarning("Could not open EGL display"); + qFatal("EGL error"); + } + + EGLint major; + EGLint minor; + if (!eglInitialize(m_eglDisplay, &major, &minor)) { + qWarning("Could not initialize EGL display"); + qFatal("EGL error"); + } + + QString extensions = eglQueryString(m_eglDisplay, EGL_EXTENSIONS); + if (!extensions.contains(QString::fromLatin1("EGL_KHR_surfaceless_opengl"))) { + qFatal("EGL_KHR_surfaceless_opengl extension not available"); + } + + //Initialize EGLContext + static EGLint contextAttribs[] = { + EGL_CONTEXT_CLIENT_VERSION, 2, + EGL_NONE + }; + + eglBindAPI(EGL_OPENGL_ES_API); + m_eglContext = eglCreateContext(m_eglDisplay, 0, 0, contextAttribs); + if (m_eglContext == EGL_NO_CONTEXT) { + qWarning("Could not create the EGL context."); + eglTerminate(m_eglDisplay); + qFatal("EGL error"); + } + + createScreens(); + + QSocketNotifier *notifier = new QSocketNotifier(m_fd, QSocketNotifier::Read, this); + connect(notifier, SIGNAL(activated(int)), this, SLOT(handlePageFlipCompleted())); +} + +QKmsDevice::~QKmsDevice() +{ + if (m_eglContext != EGL_NO_CONTEXT) { + eglDestroyContext(m_eglDisplay, m_eglContext); + m_eglContext = EGL_NO_CONTEXT; + } +} + +void QKmsDevice::createScreens() +{ + drmModeRes *resources = 0; + resources = drmModeGetResources(m_fd); + if (!resources) + qFatal("drmModeGetResources failed"); + + //Iterate connectors and create screens on each one active + for (int i = 0; i < resources->count_connectors; i++) { + drmModeConnector *connector = 0; + connector = drmModeGetConnector(m_fd, resources->connectors[i]); + if (connector && connector->connection == DRM_MODE_CONNECTED) { + m_integration->addScreen(new QKmsScreen(this, connector->connector_id)); + } + drmModeFreeConnector(connector); + } + drmModeFreeResources(resources); +} + +void QKmsDevice::handlePageFlipCompleted() +{ + //qDebug() << "Display signal recieved"; + drmEventContext eventContext; + + memset(&eventContext, 0, sizeof eventContext); + eventContext.version = DRM_EVENT_CONTEXT_VERSION; + eventContext.page_flip_handler = QKmsDevice::pageFlipHandler; + drmHandleEvent(m_fd, &eventContext); + +} + +void QKmsDevice::pageFlipHandler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void *data) +{ + Q_UNUSED(fd) + Q_UNUSED(frame) + Q_UNUSED(sec) + Q_UNUSED(usec) + static unsigned int previousTime = 0; + + unsigned int currentTime = sec * 1000000 + usec; + unsigned int refreshTime = 0; +// qDebug() << "fd: " << fd << " frame: " << frame << " sec: " +// << sec << " usec: " << usec << " data: " << data +// << "msecs" << sec * 1000 + usec / 1000; + QKmsScreen *screen = static_cast<QKmsScreen *>(data); + + if (previousTime == 0) + refreshTime = 16000; + else + refreshTime = currentTime - previousTime; + + screen->setFlipReady(refreshTime); +} + +QT_END_NAMESPACE |