QImage ComponentTransferEffect::processImage(const QImage &image, const KoFilterEffectRenderContext &context) const
{
QImage result = image;
#if QT_VERSION >= 0x040700
const QRgb *src = (const QRgb*)image.constBits();
#else
const QRgb *src = (const QRgb*)image.bits();
#endif
QRgb *dst = (QRgb*)result.bits();
int w = result.width();
qreal sa, sr, sg, sb;
qreal da, dr, dg, db;
int pixel;
const QRect roi = context.filterRegion().toRect();
const int minRow = roi.top();
const int maxRow = roi.bottom();
const int minCol = roi.left();
const int maxCol = roi.right();
for (int row = minRow; row <= maxRow; ++row) {
for (int col = minCol; col <= maxCol; ++col) {
pixel = row * w + col;
const QRgb &s = src[pixel];
sa = fromIntColor[qAlpha(s)];
sr = fromIntColor[qRed(s)];
sg = fromIntColor[qGreen(s)];
sb = fromIntColor[qBlue(s)];
// the matrix is applied to non-premultiplied color values
// so we have to convert colors by dividing by alpha value
if (sa > 0.0 && sa < 1.0) {
sr /= sa;
sb /= sa;
sg /= sa;
}
dr = transferChannel(ChannelR, sr);
dg = transferChannel(ChannelG, sg);
db = transferChannel(ChannelB, sb);
da = transferChannel(ChannelA, sa);
da *= 255.0;
// set pre-multiplied color values on destination image
dst[pixel] = qRgba(static_cast<quint8>(qBound(qreal(0.0), dr * da, qreal(255.0))),
static_cast<quint8>(qBound(qreal(0.0), dg * da, qreal(255.0))),
static_cast<quint8>(qBound(qreal(0.0), db * da, qreal(255.0))),
static_cast<quint8>(qBound(qreal(0.0), da, qreal(255.0))));
}
}
return result;
}
void CAddonCallbacksPVR::PVRTransferChannelEntry(void *addonData, const ADDON_HANDLE handle, const PVR_CHANNEL *channel)
{
if (!handle)
{
CLog::Log(LOGERROR, "PVR - %s - invalid handler data", __FUNCTION__);
return;
}
CPVRClient *client = GetPVRClient(addonData);
CPVRChannelGroupInternal *xbmcChannels = static_cast<CPVRChannelGroupInternal *>(handle->dataAddress);
if (!channel || !client || !xbmcChannels)
{
CLog::Log(LOGERROR, "PVR - %s - invalid handler data", __FUNCTION__);
return;
}
/* transfer this entry to the internal channels group */
CPVRChannelPtr transferChannel(new CPVRChannel(*channel, client->GetID()));
xbmcChannels->UpdateFromClient(transferChannel);
}
