Long live Qt 4.5!

1 files changed, 169 insertions, 0 deletions

diff --git a/src/gui/painting/qwindowsurface_d3d.cpp b/src/gui/painting/qwindowsurface_d3d.cpp
new file mode 100644
index 0000000..2b7f633
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+++ b/src/gui/painting/qwindowsurface_d3d.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//#define D3D_DEBUG_BACKBUFFER
+
+#include <QtGui/QPaintDevice>
+#include <QtGui/QWidget>
+#include "qdebug.h"
+
+#include "qpaintengine_d3d_p.h"
+#include "qwindowsurface_d3d_p.h"
+#include "private/qwidget_p.h"
+#include "private/qbackingstore_p.h"
+
+#include <d3d9.h>
+
+QT_BEGIN_NAMESPACE
+
+extern QDirect3DPaintEngine *qt_d3dEngine();
+
+struct QD3DWindowSurfacePrivate
+{
+    QSize m_lastSize;
+    QWidget *m_widget;
+};
+
+QD3DWindowSurface::QD3DWindowSurface(QWidget *window)
+    : QWindowSurface(window), d_ptr(new QD3DWindowSurfacePrivate)
+{
+    Q_ASSERT(window->isTopLevel());
+    d_ptr->m_widget = window;
+}
+
+
+QD3DWindowSurface::~QD3DWindowSurface()
+{
+    delete d_ptr;
+}
+
+QPaintDevice *QD3DWindowSurface::paintDevice()
+{
+    return d_ptr->m_widget;
+}
+
+
+void QD3DWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoint &offset)
+{
+    QPoint wOffset = qt_qwidget_data(widget)->wrect.topLeft();
+
+    QDirect3DPaintEngine *engine = qt_d3dEngine();
+    LPDIRECT3DSWAPCHAIN9 swapchain = engine->swapChain(d_ptr->m_widget);
+
+    if (swapchain) {
+        QRect br = rgn.boundingRect();
+        QRect wbr = br.translated(-wOffset);
+
+        RECT destrect;
+        destrect.left   = wbr.x();
+        destrect.top    = wbr.y();
+        destrect.right  = destrect.left + wbr.width();
+        destrect.bottom = destrect.top  + wbr.height();
+
+        RECT srcrect;
+        srcrect.left    = br.x() + offset.x();
+        srcrect.top     = br.y() + offset.y();
+        srcrect.right   = wbr.width() + srcrect.left;
+        srcrect.bottom  = wbr.height() + srcrect.top;
+        int devwidth = d_ptr->m_lastSize.width();
+        int devheight = d_ptr->m_lastSize.height();
+
+        if (devwidth <= srcrect.right) {
+            int diff = srcrect.right - devwidth;
+            srcrect.right -= diff;
+            destrect.right -= diff;
+            if (srcrect.right <= srcrect.left)
+                return;
+        }
+        if (devheight <= srcrect.bottom) {
+            int diff = srcrect.bottom - devheight;
+            srcrect.bottom -= diff;
+            destrect.bottom -= diff;
+            if (srcrect.bottom <= srcrect.top)
+                return;
+        }
+
+        if (FAILED(swapchain->Present(&srcrect, &destrect, widget->winId(), 0, 0)))
+            qWarning("QDirect3DPaintEngine: failed to present back buffer.");
+
+#ifdef D3D_DEBUG_BACKBUFFER
+        qDebug() << widget << srcrect.left << srcrect.top << wbr.width() << wbr.height() << "Dest: " << destrect.left << destrect.top;
+        IDirect3DSurface9 *surface;
+        swapchain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &surface);
+        QString filename("C:\\test.bmp");
+        D3DXSaveSurfaceToFile(filename.utf16(), D3DXIFF_BMP, surface, 0, 0);
+        surface->Release();
+#endif
+    }
+}
+
+void QD3DWindowSurface::setGeometry(const QRect &rect)
+{
+    if (rect.isEmpty())
+        qt_d3dEngine()->releaseSwapChain(d_ptr->m_widget);
+
+    d_ptr->m_lastSize = rect.size();
+    QWindowSurface::setGeometry(rect);
+}
+
+
+bool QD3DWindowSurface::scroll(const QRegion &area, int dx, int dy)
+{
+    QDirect3DPaintEngine *engine = qt_d3dEngine();
+    QRect rect = area.boundingRect();
+
+    RECT destrect;
+    destrect.left   = rect.x()+dx;
+    destrect.top    = rect.y()+dy;
+    destrect.right  = rect.width() + destrect.left;
+    destrect.bottom = rect.height() + destrect.top;
+
+    RECT srcrect;
+    srcrect.left    = rect.x();
+    srcrect.top     = rect.y();
+    srcrect.right   = rect.width() + srcrect.left;
+    srcrect.bottom  = rect.height() + srcrect.top;
+
+    engine->scroll(d_ptr->m_widget, srcrect, destrect);
+    return true;
+}
+
+QT_END_NAMESPACE