diff options
Diffstat (limited to 'src/plugins/platforms/directfb/qdirectfbblitter.cpp')
| -rw-r--r-- | src/plugins/platforms/directfb/qdirectfbblitter.cpp | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/plugins/platforms/directfb/qdirectfbblitter.cpp b/src/plugins/platforms/directfb/qdirectfbblitter.cpp new file mode 100644 index 0000000000..19998ceb2e --- /dev/null +++ b/src/plugins/platforms/directfb/qdirectfbblitter.cpp @@ -0,0 +1,155 @@ +/**************************************************************************** +** +** 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 "qdirectfbblitter.h" +#include "qdirectfbconvenience.h" + +#include <QtGui/private/qpixmap_blitter_p.h> + +#include <QDebug> + +#include <directfb.h> + +QDirectFbBlitter::QDirectFbBlitter(const QSize &rect, IDirectFBSurface *surface) + : QBlittable(rect, QBlittable::Capabilities(QBlittable::SolidRectCapability + |QBlittable::SourcePixmapCapability + |QBlittable::SourceOverPixmapCapability + |QBlittable::SourceOverScaledPixmapCapability)) +{ + if (surface) { + m_surface = surface; + } else { + DFBSurfaceDescription surfaceDesc; + memset(&surfaceDesc,0,sizeof(DFBSurfaceDescription)); + surfaceDesc.width = rect.width(); + surfaceDesc.height = rect.height(); + surfaceDesc.caps = DSCAPS_PREMULTIPLIED; + surfaceDesc.pixelformat = DSPF_ARGB; + surfaceDesc.flags = DFBSurfaceDescriptionFlags(DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_CAPS | DSDESC_PIXELFORMAT); + + IDirectFB *dfb = QDirectFbConvenience::dfbInterface(); + dfb->CreateSurface(dfb,&surfaceDesc, &m_surface); + m_surface->Clear(m_surface,0,0,0,0); + } + +} + +QDirectFbBlitter::~QDirectFbBlitter() +{ + unlock(); + m_surface->Release(m_surface); +} + +void QDirectFbBlitter::fillRect(const QRectF &rect, const QColor &color) +{ + m_surface->SetColor(m_surface, color.red(), color.green(), color.blue(), color.alpha()); +// When the blitter api supports non opaque blits, also remember to change +// qpixmap_blitter.cpp::fill +// DFBSurfaceDrawingFlags drawingFlags = color.alpha() ? DSDRAW_BLEND : DSDRAW_NOFX; +// m_surface->SetDrawingFlags(m_surface, drawingFlags); + m_surface->SetDrawingFlags(m_surface, DSDRAW_NOFX); + m_surface->FillRectangle(m_surface, rect.x(), rect.y(), + rect.width(), rect.height()); +} + +void QDirectFbBlitter::drawPixmap(const QRectF &rect, const QPixmap &pixmap, const QRectF &srcRect) +{ + QPixmapData *data = pixmap.pixmapData(); + Q_ASSERT(data->width() && data->height()); + Q_ASSERT(data->classId() == QPixmapData::BlitterClass); + QBlittablePixmapData *blitPm = static_cast<QBlittablePixmapData*>(data); + QDirectFbBlitter *dfbBlitter = static_cast<QDirectFbBlitter *>(blitPm->blittable()); + dfbBlitter->unlock(); + + IDirectFBSurface *s = dfbBlitter->m_surface; + + DFBSurfaceBlittingFlags blittingFlags = DSBLIT_NOFX; + DFBSurfacePorterDuffRule porterDuff = DSPD_SRC; + if (pixmap.hasAlpha()) { + blittingFlags = DSBLIT_BLEND_ALPHACHANNEL; + porterDuff = DSPD_SRC_OVER; + } + + m_surface->SetBlittingFlags(m_surface, DFBSurfaceBlittingFlags(blittingFlags)); + m_surface->SetPorterDuff(m_surface,porterDuff); + m_surface->SetDstBlendFunction(m_surface,DSBF_INVSRCALPHA); + + const DFBRectangle sRect = { srcRect.x(), srcRect.y(), srcRect.width(), srcRect.height() }; + + DFBResult result; + if (rect.width() == srcRect.width() && rect.height() == srcRect.height()) + result = m_surface->Blit(m_surface, s, &sRect, rect.x(), rect.y()); + else { + const DFBRectangle dRect = { rect.x(), rect.y(), rect.width(), rect.height() }; + result = m_surface->StretchBlit(m_surface, s, &sRect, &dRect); + } + if (result != DFB_OK) + DirectFBError("QDirectFBBlitter::drawPixmap()", result); +} + +QImage *QDirectFbBlitter::doLock() +{ + Q_ASSERT(m_surface); + Q_ASSERT(size().isValid()); + + void *mem; + int bpl; + const DFBResult result = m_surface->Lock(m_surface, DFBSurfaceLockFlags(DSLF_WRITE|DSLF_READ), static_cast<void**>(&mem), &bpl); + if (result == DFB_OK) { + DFBSurfacePixelFormat dfbFormat; + DFBSurfaceCapabilities dfbCaps; + m_surface->GetPixelFormat(m_surface,&dfbFormat); + m_surface->GetCapabilities(m_surface,&dfbCaps); + QImage::Format format = QDirectFbConvenience::imageFormatFromSurfaceFormat(dfbFormat, dfbCaps); + int w, h; + m_surface->GetSize(m_surface,&w,&h); + m_image = QImage(static_cast<uchar *>(mem),w,h,bpl,format); + } else { + DirectFBError("Failed to lock image", result); + } + + return &m_image; +} + +void QDirectFbBlitter::doUnlock() +{ + m_surface->Unlock(m_surface); +} |