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.data();
DFBSurfaceBlittingFlags blittingFlags = DSBLIT_NOFX;
DFBSurfacePorterDuffRule porterDuff = DSPD_SRC;
if (pixmap.hasAlpha()) {
blittingFlags = DSBLIT_BLEND_ALPHACHANNEL;
porterDuff = DSPD_SRC_OVER;
}
m_surface->SetBlittingFlags(m_surface.data(), DFBSurfaceBlittingFlags(blittingFlags));
m_surface->SetPorterDuff(m_surface.data(), porterDuff);
m_surface->SetDstBlendFunction(m_surface.data(), 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.data(), s, &sRect, rect.x(), rect.y());
else {
const DFBRectangle dRect = { rect.x(), rect.y(), rect.width(), rect.height() };
result = m_surface->StretchBlit(m_surface.data(), s, &sRect, &dRect);
}
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::drawPixmap()", result);
}
void QDirectFbBlitter::drawPixmapOpacity(const QRectF &rect, const QPixmap &pixmap, const QRectF &subrect, QPainter::CompositionMode cmode, qreal opacity)
{
QRect sQRect = subrect.toRect();
QRect dQRect = rect.toRect();
DFBRectangle sRect(sQRect.x(), sQRect.y(), sQRect.width(), sQRect.height());
DFBRectangle dRect(dQRect.x(), dQRect.y(), dQRect.width(), dQRect.height());
DFBResult result;
// skip if dst too small
if ((dRect.w <= 0) || (dRect.h <= 0)) return;
// correct roundings if needed
if (sRect.w <= 0) sRect.w = 1;
if (sRect.h <= 0) sRect.h = 1;
QDirectFbBlitterPlatformPixmap *blitPm = static_cast<QDirectFbBlitterPlatformPixmap *>(pixmap.handle());
QDirectFbBlitter *dfbBlitter = static_cast<QDirectFbBlitter *>(blitPm->blittable());
dfbBlitter->unlock();
IDirectFBSurface *s = dfbBlitter->m_surface.data();
DFBSurfaceBlittingFlags blittingFlags = DFBSurfaceBlittingFlags(DSBLIT_BLEND_ALPHACHANNEL);
DFBSurfacePorterDuffRule porterDuff = (cmode == QPainter::CompositionMode_SourceOver) ? DSPD_SRC_OVER : DSPD_SRC;
if (opacity != 1.0)
{
blittingFlags = DFBSurfaceBlittingFlags(blittingFlags | DSBLIT_BLEND_COLORALPHA | (m_premult ? DSBLIT_SRC_PREMULTCOLOR : 0));
m_surface->SetColor(m_surface.data(), 0xff, 0xff, 0xff, (u8) (opacity * 255.0));
}
m_surface->SetBlittingFlags(m_surface.data(), DFBSurfaceBlittingFlags(blittingFlags));
m_surface->SetPorterDuff(m_surface.data(), porterDuff);
if (cmode == QPainter::CompositionMode_SourceOver)
m_surface->SetDstBlendFunction(m_surface.data(), DSBF_INVSRCALPHA);
if ((sRect.w == dRect.w) && (sRect.h == dRect.h)) {
result = m_surface->Blit(m_surface.data(), s, &sRect, dRect.x, dRect.y);
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::drawPixmapOpacity()", result);
if (m_debugPaint)
drawDebugRect(QRect(dRect.x, dRect.y, sRect.w, sRect.h), QColor(Qt::green));
} else {
result = m_surface->StretchBlit(m_surface.data(), s, &sRect, &dRect);
if (result != DFB_OK)
DirectFBError("QDirectFBBlitter::drawPixmapOpacity()", result);
if (m_debugPaint)
drawDebugRect(QRect(dRect.x, dRect.y, dRect.w, dRect.h), QColor(Qt::red));
}
}
