diff options
author | Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com> | 2012-05-27 09:27:57 -0700 |
---|---|---|
committer | Qt by Nokia <qt-info@nokia.com> | 2012-05-30 08:30:42 +0200 |
commit | 0cb7dac534049ebda607a9a2cdde2f7c7d9533c2 (patch) | |
tree | 7944e3c430ee527be02c1d37180247aa6e828cf5 /src/plugins/platforms/minimalegl/qminimaleglscreen.cpp | |
parent | 9e424adbdddc172ed63ee22995ba4bcc56bef0ce (diff) |
Add minimalegl QPA platform plugin
The EGLFS platform plugin was originally meant to be an example
and thus to be kept simple. However, EGLFS is becoming more
and more complex with the addition of hooks for board support,
cursor integration, built-in evdev support etc.
minimalegl is a new platform plugin that intends to follow
the original intentions of EGLFS.
The code is an adaptation of EGLFS as of f913859f8
Change-Id: I3d4cf84cde380cdcc7e0e8bfefff4df6be731b8d
Reviewed-by: Jørgen Lind <jorgen.lind@nokia.com>
Diffstat (limited to 'src/plugins/platforms/minimalegl/qminimaleglscreen.cpp')
-rw-r--r-- | src/plugins/platforms/minimalegl/qminimaleglscreen.cpp | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/src/plugins/platforms/minimalegl/qminimaleglscreen.cpp b/src/plugins/platforms/minimalegl/qminimaleglscreen.cpp new file mode 100644 index 0000000000..ff1617d538 --- /dev/null +++ b/src/plugins/platforms/minimalegl/qminimaleglscreen.cpp @@ -0,0 +1,216 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** 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 "qminimaleglscreen.h" +#include "qminimaleglwindow.h" + +#include <QtPlatformSupport/private/qeglconvenience_p.h> +#include <QtPlatformSupport/private/qeglplatformcontext_p.h> + +#ifdef Q_OPENKODE +#include <KD/kd.h> +#include <KD/NV_initialize.h> +#endif //Q_OPENKODE + +QT_BEGIN_NAMESPACE + +// #define QEGL_EXTRA_DEBUG + +class QMinimalEglContext : public QEGLPlatformContext +{ +public: + QMinimalEglContext(const QSurfaceFormat &format, QPlatformOpenGLContext *share, EGLDisplay display, + EGLenum eglApi = EGL_OPENGL_ES_API) + : QEGLPlatformContext(format, share, display, eglApi) + { + } + + EGLSurface eglSurfaceForPlatformSurface(QPlatformSurface *surface) + { + QMinimalEglWindow *window = static_cast<QMinimalEglWindow *>(surface); + QMinimalEglScreen *screen = static_cast<QMinimalEglScreen *>(window->screen()); + return screen->surface(); + } +}; + +QMinimalEglScreen::QMinimalEglScreen(EGLNativeDisplayType display) + : m_depth(32) + , m_format(QImage::Format_Invalid) + , m_platformContext(0) + , m_surface(0) +{ +#ifdef QEGL_EXTRA_DEBUG + qWarning("QEglScreen %p\n", this); +#endif + + EGLint major, minor; + + if (!eglBindAPI(EGL_OPENGL_ES_API)) { + qWarning("Could not bind GL_ES API\n"); + qFatal("EGL error"); + } + + m_dpy = eglGetDisplay(display); + if (m_dpy == EGL_NO_DISPLAY) { + qWarning("Could not open egl display\n"); + qFatal("EGL error"); + } + qWarning("Opened display %p\n", m_dpy); + + if (!eglInitialize(m_dpy, &major, &minor)) { + qWarning("Could not initialize egl display\n"); + qFatal("EGL error"); + } + + qWarning("Initialized display %d %d\n", major, minor); + + int swapInterval = 1; + QByteArray swapIntervalString = qgetenv("QT_QPA_EGLFS_SWAPINTERVAL"); + if (!swapIntervalString.isEmpty()) { + bool ok; + swapInterval = swapIntervalString.toInt(&ok); + if (!ok) + swapInterval = 1; + } + eglSwapInterval(m_dpy, swapInterval); +} + +QMinimalEglScreen::~QMinimalEglScreen() +{ + if (m_surface) + eglDestroySurface(m_dpy, m_surface); + + eglTerminate(m_dpy); +} + +void QMinimalEglScreen::createAndSetPlatformContext() const { + const_cast<QMinimalEglScreen *>(this)->createAndSetPlatformContext(); +} + +void QMinimalEglScreen::createAndSetPlatformContext() +{ + QSurfaceFormat platformFormat; + + QByteArray depthString = qgetenv("QT_QPA_EGLFS_DEPTH"); + if (depthString.toInt() == 16) { + platformFormat.setDepthBufferSize(16); + platformFormat.setRedBufferSize(5); + platformFormat.setGreenBufferSize(6); + platformFormat.setBlueBufferSize(5); + m_depth = 16; + m_format = QImage::Format_RGB16; + } else { + platformFormat.setDepthBufferSize(24); + platformFormat.setStencilBufferSize(8); + platformFormat.setRedBufferSize(8); + platformFormat.setGreenBufferSize(8); + platformFormat.setBlueBufferSize(8); + m_depth = 32; + m_format = QImage::Format_RGB32; + } + + if (!qgetenv("QT_QPA_EGLFS_MULTISAMPLE").isEmpty()) + platformFormat.setSamples(4); + + EGLConfig config = q_configFromGLFormat(m_dpy, platformFormat); + + EGLNativeWindowType eglWindow = 0; +#ifdef Q_OPENKODE + if (kdInitializeNV() == KD_ENOTINITIALIZED) { + qFatal("Did not manage to initialize openkode"); + } + KDWindow *window = kdCreateWindow(m_dpy,config,0); + + kdRealizeWindow(window,&eglWindow); +#endif + +#ifdef QEGL_EXTRA_DEBUG + q_printEglConfig(m_dpy, config); +#endif + + m_surface = eglCreateWindowSurface(m_dpy, config, eglWindow, NULL); + if (m_surface == EGL_NO_SURFACE) { + qWarning("Could not create the egl surface: error = 0x%x\n", eglGetError()); + eglTerminate(m_dpy); + qFatal("EGL error"); + } + // qWarning("Created surface %dx%d\n", w, h); + + QEGLPlatformContext *platformContext = new QMinimalEglContext(platformFormat, 0, m_dpy); + m_platformContext = platformContext; + + EGLint w,h; // screen size detection + eglQuerySurface(m_dpy, m_surface, EGL_WIDTH, &w); + eglQuerySurface(m_dpy, m_surface, EGL_HEIGHT, &h); + + m_geometry = QRect(0,0,w,h); + +} + +QRect QMinimalEglScreen::geometry() const +{ + if (m_geometry.isNull()) { + createAndSetPlatformContext(); + } + return m_geometry; +} + +int QMinimalEglScreen::depth() const +{ + return m_depth; +} + +QImage::Format QMinimalEglScreen::format() const +{ + if (m_format == QImage::Format_Invalid) + createAndSetPlatformContext(); + return m_format; +} +QPlatformOpenGLContext *QMinimalEglScreen::platformContext() const +{ + if (!m_platformContext) { + QMinimalEglScreen *that = const_cast<QMinimalEglScreen *>(this); + that->createAndSetPlatformContext(); + } + return m_platformContext; +} + +QT_END_NAMESPACE |