diff options
Diffstat (limited to 'src/gui/egl/qegl_x11.cpp')
| -rw-r--r-- | src/gui/egl/qegl_x11.cpp | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/src/gui/egl/qegl_x11.cpp b/src/gui/egl/qegl_x11.cpp new file mode 100644 index 0000000..956d50d --- /dev/null +++ b/src/gui/egl/qegl_x11.cpp @@ -0,0 +1,157 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at http://qt.nokia.com/contact. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtCore/qdebug.h> + +#include <private/qt_x11_p.h> +#include <QtGui/qx11info_x11.h> +#include <private/qpixmapdata_p.h> +#include <private/qpixmap_x11_p.h> + +#include <QtGui/qpaintdevice.h> +#include <QtGui/qpixmap.h> +#include <QtGui/qwidget.h> +#include "qegl_p.h" + + +QT_BEGIN_NAMESPACE + +bool QEglContext::createSurface(QPaintDevice *device, const QEglProperties *properties) +{ + // Create the native drawable for the paint device. + int devType = device->devType(); + EGLNativePixmapType pixmapDrawable = 0; + EGLNativeWindowType windowDrawable = 0; + bool ok; + if (devType == QInternal::Pixmap) { + pixmapDrawable = (EGLNativePixmapType)(static_cast<QPixmap *>(device))->handle(); + ok = (pixmapDrawable != 0); + } else if (devType == QInternal::Widget) { + windowDrawable = (EGLNativeWindowType)(static_cast<QWidget *>(device))->winId(); + ok = (windowDrawable != 0); + } else { + ok = false; + } + if (!ok) { + qWarning("QEglContext::createSurface(): Cannot create the native EGL drawable"); + return false; + } + + // Create the EGL surface to draw into, based on the native drawable. + const int *props; + if (properties) + props = properties->properties(); + else + props = 0; + if (devType == QInternal::Widget) + surf = eglCreateWindowSurface(dpy, cfg, windowDrawable, props); + else + surf = eglCreatePixmapSurface(dpy, cfg, pixmapDrawable, props); + if (surf == EGL_NO_SURFACE) { + qWarning() << "QEglContext::createSurface(): Unable to create EGL surface:" + << errorString(eglGetError()); + return false; + } + return true; +} + +EGLDisplay QEglContext::getDisplay(QPaintDevice *device) +{ + Q_UNUSED(device); + Display *xdpy = QX11Info::display(); + if (!xdpy) { + qWarning("QEglContext::getDisplay(): X11 display is not open"); + return EGL_NO_DISPLAY; + } + return eglGetDisplay(EGLNativeDisplayType(xdpy)); +} + +static int countBits(unsigned long mask) +{ + int count = 0; + while (mask != 0) { + if (mask & 1) + ++count; + mask >>= 1; + } + return count; +} + +// Set the pixel format parameters from the visual in "xinfo". +void QEglProperties::setVisualFormat(const QX11Info *xinfo) +{ + if (!xinfo) + return; + Visual *visual = (Visual*)xinfo->visual(); + if (!visual) + return; + if (visual->c_class != TrueColor && visual->c_class != DirectColor) + return; + setValue(EGL_RED_SIZE, countBits(visual->red_mask)); + setValue(EGL_GREEN_SIZE, countBits(visual->green_mask)); + setValue(EGL_BLUE_SIZE, countBits(visual->blue_mask)); + + EGLint alphaBits = 0; +#if !defined(QT_NO_XRENDER) + XRenderPictFormat *format; + format = XRenderFindVisualFormat(xinfo->display(), visual); + if (format && (format->type == PictTypeDirect) && format->direct.alphaMask) { + alphaBits = countBits(format->direct.alphaMask); + qDebug("QEglProperties::setVisualFormat() - visual's alphaMask is %d", alphaBits); + } +#endif + setValue(EGL_ALPHA_SIZE, alphaBits); +} + +extern const QX11Info *qt_x11Info(const QPaintDevice *pd); + +// Set pixel format and other properties based on a paint device. +void QEglProperties::setPaintDeviceFormat(QPaintDevice *dev) +{ + if (!dev) + return; + if (dev->devType() == QInternal::Image) + setPixelFormat(static_cast<QImage *>(dev)->format()); + else + setVisualFormat(qt_x11Info(dev)); +} + +QT_END_NAMESPACE |