1 files changed, 273 insertions, 0 deletions
diff --git a/src/plugins/gfxdrivers/powervr/pvreglscreen/pvreglwindowsurface.cpp b/src/plugins/gfxdrivers/powervr/pvreglscreen/pvreglwindowsurface.cpp
new file mode 100644
index 0000000000..43648159c8
--- /dev/null
+++ b/src/plugins/gfxdrivers/powervr/pvreglscreen/pvreglwindowsurface.cpp
@@ -0,0 +1,273 @@
+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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, PvrEglScreen *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();
+    transformRects(&pvrRect, 1);
+
+    // 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);
+    pvrQwsSetRotation(drawable, screen->transformation());
+}
+
+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();
+        transformRects(&pvrRect, 1);
+        pvrQwsSetGeometry(drawable, &pvrRect);
+        pvrQwsSetRotation(drawable, screen->transformation());
+    }
+    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();
+        transformRects(&pvrRect, 1);
+        pvrQwsSetGeometry(drawable, &pvrRect);
+        pvrQwsSetRotation(drawable, screen->transformation());
+    }
+    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 &region, 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.rectCount() == 1) {
+        QRect rect = region.boundingRect();
+        PvrQwsRect pvrRect;
+        pvrRect.x = rect.x();
+        pvrRect.y = rect.y();
+        pvrRect.width = rect.width();
+        pvrRect.height = rect.height();
+        transformRects(&pvrRect, 1);
+        pvrQwsSetVisibleRegion(drawable, &pvrRect, 1);
+        pvrQwsSetRotation(drawable, screen->transformation());
+        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();
+        }
+        transformRects(pvrRects, rects.size());
+        pvrQwsSetVisibleRegion(drawable, pvrRects, rects.size());
+        pvrQwsSetRotation(drawable, screen->transformation());
+        if (!pvrQwsSwapBuffers(drawable, 1))
+            screen->solidFill(QColor(0, 0, 0), region);
+        delete [] pvrRects;
+    }
+}
+
+void PvrEglWindowSurface::transformRects(PvrQwsRect *rects, int count) const
+{
+    switch (screen->transformation()) {
+    case 0: break;
+
+    case 90:
+    {
+        for (int index = 0; index < count; ++index) {
+            int x = rects[index].y;
+            int y = screen->height() - (rects[index].x + rects[index].width);
+            rects[index].x = x;
+            rects[index].y = y;
+            qSwap(rects[index].width, rects[index].height);
+        }
+    }
+    break;
+
+    case 180:
+    {
+        for (int index = 0; index < count; ++index) {
+            int x = screen->width() - (rects[index].x + rects[index].width);
+            int y = screen->height() - (rects[index].y + rects[index].height);
+            rects[index].x = x;
+            rects[index].y = y;
+        }
+    }
+    break;
+
+    case 270:
+    {
+        for (int index = 0; index < count; ++index) {
+            int x = screen->width() - (rects[index].y + rects[index].height);
+            int y = rects[index].x;
+            rects[index].x = x;
+            rects[index].y = y;
+            qSwap(rects[index].width, rects[index].height);
+        }
+    }
+    break;
+    }
+}