Raster dstRaster;
Raster dstIn;
WritableRaster dstOut;
SurfaceData sd = sg.getSurfaceData();
dstRaster = sd.getRaster(x, y, w, h);
if (dstRaster instanceof WritableRaster && atile == null) {
dstOut = (WritableRaster) dstRaster;
dstOut = dstOut.createWritableChild(x, y, w, h, 0, 0, null);
dstIn = dstOut;
} else {
dstIn = dstRaster.createChild(x, y, w, h, 0, 0, null);
dstOut = dstIn.createCompatibleWritableRaster();
}
compCtxt.compose(srcRaster, dstIn, dstOut);
if (dstRaster != dstOut && dstOut.getParent() != dstRaster) {
if (dstRaster instanceof WritableRaster && atile == null) {
((WritableRaster) dstRaster).setDataElements(x, y, dstOut);
} else {
ColorModel cm = sg.getDeviceColorModel();
BufferedImage resImg =
new BufferedImage(cm, dstOut,
cm.isAlphaPremultiplied(),
null);
SurfaceData resData = BufImgSurfaceData.createData(resImg);
if (atile == null) {
Blit blit = Blit.getFromCache(resData.getSurfaceType(),
CompositeType.SrcNoEa,
sd.getSurfaceType());
blit.Blit(resData, sd, AlphaComposite.Src, null,
0, 0, x, y, w, h);
} else {
MaskBlit blit = MaskBlit.getFromCache(resData.getSurfaceType(),
CompositeType.SrcNoEa,
sd.getSurfaceType());
blit.MaskBlit(resData, sd, AlphaComposite.Src, null,
0, 0, x, y, w, h,
atile, offset, tilesize);