/*!
To be called from the PixmapData's paintEngine().
*/
QPaintEngine *QVolatileImage::paintEngine()
{
if (!d->pengine) {
d->pengine = new QVolatileImagePaintEngine(&imageRef(), this);
}
return d->pengine;
}
void QVolatileImage::fill(uint pixelValue)
{
beginDataAccess();
imageRef().fill(pixelValue);
endDataAccess();
d->ensureImage();
}
void QVolatileImage::copyFrom(QVolatileImage *source, const QRect &rect)
{
if (source->isNull()) {
return;
}
QRect r = rect;
if (rect.isNull()) {
r = QRect(0, 0, source->width(), source->height());
}
source->beginDataAccess();
QImage &srcImgRef(source->imageRef());
int srcbpl = srcImgRef.bytesPerLine();
int srcbpp = srcImgRef.depth() / 8;
const uchar *sptr = srcImgRef.constBits() + r.y() * srcbpl;
beginDataAccess();
QImage &dstImgRef(imageRef());
if (!dstImgRef.isNull()) {
int dstbpl = dstImgRef.bytesPerLine();
uchar *dptr = dstImgRef.bits();
for (int y = 0; y < r.height(); ++y) {
qMemCopy(dptr, sptr + r.x() * srcbpp, r.width() * srcbpp);
sptr += srcbpl;
dptr += dstbpl;
}
}
endDataAccess();
source->endDataAccess(true);
}
void QVolatileImage::setAlphaChannel(const QPixmap &alphaChannel)
{
ensureFormat(QImage::Format_ARGB32_Premultiplied);
beginDataAccess();
imageRef().setAlphaChannel(alphaChannel.toImage());
endDataAccess();
d->ensureImage();
}
void LayerTreeHostProxy::updateTile(WebLayerID layerID, int tileID, const IntRect& sourceRect, const IntRect& targetRect, const QImage& image)
{
ensureLayer(layerID);
TextureMapperNode* node = toTextureMapperNode(layerByID(layerID));
if (!node)
return;
int nodeTileID = remoteTileIDToNodeTileID(tileID);
if (!nodeTileID)
return;
QImage imageRef(image);
node->setTextureMapper(m_textureMapper.get());
node->setContentsTileBackBuffer(nodeTileID, sourceRect, targetRect, imageRef.bits(), BitmapTexture::BGRAFormat);
}
