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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the plugins 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 "pvreglscreen.h"
#include "pvreglwindowsurface.h"
#include "pvrqwsdrawable_p.h"
#include <QRegExp>
#include <qwindowsystem_qws.h>
#ifndef QT_NO_QWS_TRANSFORMED
#include <qscreentransformed_qws.h>
#endif
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/kd.h>
#include <fcntl.h>
#include <unistd.h>
//![0]
PvrEglScreen::PvrEglScreen(int displayId)
: QGLScreen(displayId)
{
setOptions(NativeWindows);
setSupportsBlitInClients(true);
setSurfaceFunctions(new PvrEglScreenSurfaceFunctions(this, displayId));
//![0]
fd = -1;
ttyfd = -1;
doGraphicsMode = true;
oldKdMode = KD_TEXT;
parent = 0;
// Make sure that the EGL layer is initialized and the drivers loaded.
EGLDisplay dpy = eglGetDisplay((EGLNativeDisplayType)EGL_DEFAULT_DISPLAY);
if (!eglInitialize(dpy, 0, 0))
qWarning("Could not initialize EGL display - are the drivers loaded?");
// Make sure that screen 0 is initialized.
pvrQwsScreenWindow(0);
}
PvrEglScreen::~PvrEglScreen()
{
if (fd >= 0)
::close(fd);
}
bool PvrEglScreen::initDevice()
{
openTty();
return true;
}
bool PvrEglScreen::connect(const QString &displaySpec)
{
if (!pvrQwsDisplayOpen())
return false;
// Initialize the QScreen properties.
data = (uchar *)(pvrQwsDisplay.screens[0].mapped);
w = pvrQwsDisplay.screens[0].screenRect.width;
h = pvrQwsDisplay.screens[0].screenRect.height;
lstep = pvrQwsDisplay.screens[0].screenStride;
dw = w;
dh = h;
size = h * lstep;
mapsize = size;
switch (pvrQwsDisplay.screens[0].pixelFormat) {
case PVR2D_RGB565:
d = 16;
setPixelFormat(QImage::Format_RGB16);
break;
case PVR2D_ARGB4444:
d = 16;
setPixelFormat(QImage::Format_ARGB4444_Premultiplied);
break;
case PVR2D_ARGB8888:
d = 32;
setPixelFormat(QImage::Format_ARGB32_Premultiplied);
break;
default:
pvrQwsDisplayClose();
qWarning("PvrEglScreen::connect: unsupported pixel format %d", (int)(pvrQwsDisplay.screens[0].pixelFormat));
return false;
}
// Handle display physical size spec.
QStringList displayArgs = displaySpec.split(QLatin1Char(':'));
QRegExp mmWidthRx(QLatin1String("mmWidth=?(\\d+)"));
int dimIdxW = displayArgs.indexOf(mmWidthRx);
QRegExp mmHeightRx(QLatin1String("mmHeight=?(\\d+)"));
int dimIdxH = displayArgs.indexOf(mmHeightRx);
if (dimIdxW >= 0) {
mmWidthRx.exactMatch(displayArgs.at(dimIdxW));
physWidth = mmWidthRx.cap(1).toInt();
if (dimIdxH < 0)
physHeight = dh*physWidth/dw;
}
if (dimIdxH >= 0) {
mmHeightRx.exactMatch(displayArgs.at(dimIdxH));
physHeight = mmHeightRx.cap(1).toInt();
if (dimIdxW < 0)
physWidth = dw*physHeight/dh;
}
if (dimIdxW < 0 && dimIdxH < 0) {
const int dpi = 72;
physWidth = qRound(dw * 25.4 / dpi);
physHeight = qRound(dh * 25.4 / dpi);
}
// Find the name of the tty device to use.
QRegExp ttyRegExp(QLatin1String("tty=(.*)"));
if (displayArgs.indexOf(ttyRegExp) != -1)
ttyDevice = ttyRegExp.cap(1);
if (displayArgs.contains(QLatin1String("nographicsmodeswitch")))
doGraphicsMode = false;
// The screen is ready.
return true;
}
void PvrEglScreen::disconnect()
{
pvrQwsDisplayClose();
}
void PvrEglScreen::shutdownDevice()
{
closeTty();
}
void PvrEglScreen::blit(const QImage &img, const QPoint &topLeft, const QRegion ®ion)
{
QGLScreen::blit(img, topLeft, region);
sync();
}
void PvrEglScreen::solidFill(const QColor &color, const QRegion ®ion)
{
QGLScreen::solidFill(color, region);
sync();
}
bool PvrEglScreen::chooseContext
(QGLContext *context, const QGLContext *shareContext)
{
// We use PvrEglScreenSurfaceFunctions instead.
Q_UNUSED(context);
Q_UNUSED(shareContext);
return false;
}
bool PvrEglScreen::hasOpenGL()
{
return true;
}
//![1]
QWSWindowSurface* PvrEglScreen::createSurface(QWidget *widget) const
{
if (qobject_cast<QGLWidget*>(widget))
return new PvrEglWindowSurface(widget, (PvrEglScreen *)this, displayId);
return QScreen::createSurface(widget);
}
QWSWindowSurface* PvrEglScreen::createSurface(const QString &key) const
{
if (key == QLatin1String("PvrEgl"))
return new PvrEglWindowSurface();
return QScreen::createSurface(key);
}
//![1]
#ifndef QT_NO_QWS_TRANSFORMED
static const QScreen *parentScreen
(const QScreen *current, const QScreen *lookingFor)
{
if (!current)
return 0;
switch (current->classId()) {
case QScreen::ProxyClass:
case QScreen::TransformedClass: {
const QScreen *child =
static_cast<const QProxyScreen *>(current)->screen();
if (child == lookingFor)
return current;
else
return parentScreen(child, lookingFor);
}
// Not reached.
case QScreen::MultiClass: {
QList<QScreen *> screens = current->subScreens();
foreach (QScreen *screen, screens) {
if (screen == lookingFor)
return current;
const QScreen *parent = parentScreen(screen, lookingFor);
if (parent)
return parent;
}
}
break;
default: break;
}
return 0;
}
int PvrEglScreen::transformation() const
{
// We need to search for our parent screen, which is assumed to be
// "Transformed". If it isn't, then there is no transformation.
// There is no direct method to get the parent screen so we need
// to search every screen until we find ourselves.
if (!parent && qt_screen != this)
parent = parentScreen(qt_screen, this);
if (!parent)
return 0;
if (parent->classId() != QScreen::TransformedClass)
return 0;
return 90 * static_cast<const QTransformedScreen *>(parent)
->transformOrientation();
}
#else
int PvrEglScreen::transformation() const
{
return 0;
}
#endif
void PvrEglScreen::sync()
{
// Put code here to synchronize 2D and 3D operations if necessary.
}
void PvrEglScreen::openTty()
{
const char *const devs[] = {"/dev/tty0", "/dev/tty", "/dev/console", 0};
if (ttyDevice.isEmpty()) {
for (const char * const *dev = devs; *dev; ++dev) {
ttyfd = ::open(*dev, O_RDWR);
if (ttyfd != -1)
break;
}
} else {
ttyfd = ::open(ttyDevice.toAscii().constData(), O_RDWR);
}
if (ttyfd == -1)
return;
::fcntl(ttyfd, F_SETFD, FD_CLOEXEC);
if (doGraphicsMode) {
ioctl(ttyfd, KDGETMODE, &oldKdMode);
if (oldKdMode != KD_GRAPHICS) {
int ret = ioctl(ttyfd, KDSETMODE, KD_GRAPHICS);
if (ret == -1)
doGraphicsMode = false;
}
}
// No blankin' screen, no blinkin' cursor!, no cursor!
const char termctl[] = "\033[9;0]\033[?33l\033[?25l\033[?1c";
::write(ttyfd, termctl, sizeof(termctl));
}
void PvrEglScreen::closeTty()
{
if (ttyfd == -1)
return;
if (doGraphicsMode)
ioctl(ttyfd, KDSETMODE, oldKdMode);
// Blankin' screen, blinkin' cursor!
const char termctl[] = "\033[9;15]\033[?33h\033[?25h\033[?0c";
::write(ttyfd, termctl, sizeof(termctl));
::close(ttyfd);
ttyfd = -1;
}
//![2]
bool PvrEglScreenSurfaceFunctions::createNativeWindow(QWidget *widget, EGLNativeWindowType *native)
{
//![2]
QWSWindowSurface *surface =
static_cast<QWSWindowSurface *>(widget->windowSurface());
if (!surface) {
// The widget does not have a surface yet, so give it one.
surface = new PvrEglWindowSurface(widget, screen, displayId);
widget->setWindowSurface(surface);
} else if (surface->key() != QLatin1String("PvrEgl")) {
// The application has attached a QGLContext to an ordinary QWidget.
// Replace the widget's window surface with a new one that can do GL.
QRect geometry = widget->frameGeometry();
geometry.moveTo(widget->mapToGlobal(QPoint(0, 0)));
surface = new PvrEglWindowSurface(widget, screen, displayId);
surface->setGeometry(geometry);
widget->setWindowSurface(surface);
widget->setAttribute(Qt::WA_NoSystemBackground, true);
}
PvrEglWindowSurface *nsurface = static_cast<PvrEglWindowSurface*>(surface);
*native = (EGLNativeWindowType)(nsurface->nativeDrawable());
return true;
}
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