diff options
Diffstat (limited to 'src/gui/painting/qwindowsurface_d3d.cpp')
| -rw-r--r-- | src/gui/painting/qwindowsurface_d3d.cpp | 169 |
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 0000000000..2b7f633157 --- /dev/null +++ b/src/gui/painting/qwindowsurface_d3d.cpp @@ -0,0 +1,169 @@ +/**************************************************************************** +** +** 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 |