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/****************************************************************************
**
** Copyright (C) 2009 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "pvreglwindowsurface.h"
#include "pvreglscreen.h"
#include <QScreen>
#include <QDebug>
#include <QWSDisplay>
PvrEglWindowSurface::PvrEglWindowSurface
(QWidget *widget, QScreen *screen, int screenNum)
: QWSGLWindowSurface(widget)
{
setSurfaceFlags(QWSWindowSurface::Opaque);
this->widget = widget;
this->screen = screen;
this->pdevice = 0;
QPoint pos = offset(widget);
QSize size = widget->size();
PvrQwsRect pvrRect;
pvrRect.x = pos.x();
pvrRect.y = pos.y();
pvrRect.width = size.width();
pvrRect.height = size.height();
// Try to recover a previous PvrQwsDrawable object for the widget
// if there is one. This can happen when a PvrEglWindowSurface
// is created for a widget, bound to a EGLSurface, and then destroyed.
// When a new PvrEglWindowSurface is created for the widget, it will
// pick up the previous PvrQwsDrawable if the EGLSurface has not been
// destroyed in the meantime.
drawable = pvrQwsFetchWindow((long)widget);
if (drawable)
pvrQwsSetGeometry(drawable, &pvrRect);
else
drawable = pvrQwsCreateWindow(screenNum, (long)widget, &pvrRect);
}
PvrEglWindowSurface::PvrEglWindowSurface()
: QWSGLWindowSurface()
{
setSurfaceFlags(QWSWindowSurface::Opaque);
drawable = 0;
widget = 0;
screen = 0;
pdevice = 0;
}
PvrEglWindowSurface::~PvrEglWindowSurface()
{
// Release the PvrQwsDrawable. If it is bound to an EGLSurface,
// then it will stay around until a new PvrEglWindowSurface is
// created for the widget. If it is not bound to an EGLSurface,
// it will be destroyed immediately.
if (drawable && pvrQwsReleaseWindow(drawable))
pvrQwsDestroyDrawable(drawable);
delete pdevice;
}
bool PvrEglWindowSurface::isValid() const
{
return (widget != 0);
}
void PvrEglWindowSurface::setGeometry(const QRect &rect)
{
if (drawable) {
// XXX: adjust for the screen offset.
PvrQwsRect pvrRect;
pvrRect.x = rect.x();
pvrRect.y = rect.y();
pvrRect.width = rect.width();
pvrRect.height = rect.height();
pvrQwsSetGeometry(drawable, &pvrRect);
}
QWSGLWindowSurface::setGeometry(rect);
}
bool PvrEglWindowSurface::move(const QPoint &offset)
{
QRect rect = geometry().translated(offset);
if (drawable) {
PvrQwsRect pvrRect;
pvrRect.x = rect.x();
pvrRect.y = rect.y();
pvrRect.width = rect.width();
pvrRect.height = rect.height();
pvrQwsSetGeometry(drawable, &pvrRect);
}
return QWSGLWindowSurface::move(offset);
}
QByteArray PvrEglWindowSurface::permanentState() const
{
// Nothing interesting to pass to the server just yet.
return QByteArray();
}
void PvrEglWindowSurface::setPermanentState(const QByteArray &state)
{
Q_UNUSED(state);
}
void PvrEglWindowSurface::flush
(QWidget *widget, const QRegion ®ion, const QPoint &offset)
{
// The GL paint engine is responsible for the swapBuffers() call.
// If we were to call the base class's implementation of flush()
// then it would fetch the image() and manually blit it to the
// screeen instead of using the fast PVR2D blit.
Q_UNUSED(widget);
Q_UNUSED(region);
Q_UNUSED(offset);
}
QImage PvrEglWindowSurface::image() const
{
if (drawable) {
PvrQwsRect pvrRect;
pvrQwsGetGeometry(drawable, &pvrRect);
void *data = pvrQwsGetRenderBuffer(drawable);
if (data) {
return QImage((uchar *)data, pvrRect.width, pvrRect.height,
pvrQwsGetStride(drawable), screen->pixelFormat());
}
}
return QImage(16, 16, screen->pixelFormat());
}
QPaintDevice *PvrEglWindowSurface::paintDevice()
{
return widget;
}
void PvrEglWindowSurface::setDirectRegion(const QRegion &r, int id)
{
QWSGLWindowSurface::setDirectRegion(r, id);
if (!drawable)
return;
// Clip the region to the window boundaries in case the child
// is partially outside the geometry of the parent.
QWidget *window = widget->window();
QRegion region = r;
if (widget != window) {
QRect rect = window->geometry();
rect.moveTo(window->mapToGlobal(QPoint(0, 0)));
region = region.intersect(rect);
}
if (region.isEmpty()) {
pvrQwsClearVisibleRegion(drawable);
} else if (region.numRects() == 1) {
QRect rect = region.boundingRect();
PvrQwsRect pvrRect;
pvrRect.x = rect.x();
pvrRect.y = rect.y();
pvrRect.width = rect.width();
pvrRect.height = rect.height();
pvrQwsSetVisibleRegion(drawable, &pvrRect, 1);
if (!pvrQwsSwapBuffers(drawable, 1))
screen->solidFill(QColor(0, 0, 0), region);
} else {
QVector<QRect> rects = region.rects();
PvrQwsRect *pvrRects = new PvrQwsRect [rects.size()];
for (int index = 0; index < rects.size(); ++index) {
QRect rect = rects[index];
pvrRects[index].x = rect.x();
pvrRects[index].y = rect.y();
pvrRects[index].width = rect.width();
pvrRects[index].height = rect.height();
}
pvrQwsSetVisibleRegion(drawable, pvrRects, rects.size());
if (!pvrQwsSwapBuffers(drawable, 1))
screen->solidFill(QColor(0, 0, 0), region);
delete [] pvrRects;
}
}
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