@SuppressWarnings("deprecation")
@Override
public RenderedImage create(ParameterBlock paramBlock, RenderingHints renderHints) {
ImageLayout layout = RIFUtil.getImageLayoutHint(renderHints);
RenderedImage source = paramBlock.getRenderedSource(0);
double scaleX = paramBlock.getDoubleParameter(0);
double scaleY = paramBlock.getDoubleParameter(1);
// Check and see if we are scaling by 1.0 in both x and y and no
// translations. If so return the source directly.
if (scaleX == 1.0 && scaleY == 1.0) {
return source;
}
return new LanczosOpImage(source, layout, renderHints, scaleX, scaleY);
}
/**
* Creates a new instance of <code>MlibWarpOpImage</code> in the rendered image mode.
*
* @param args The source images.
* @param hints May contain rendering hints and destination image layout.
*/
public RenderedImage create(ParameterBlock args, RenderingHints hints) {
/* Get ImageLayout and TileCache from RenderingHints. */
ImageLayout layout = RIFUtil.getImageLayoutHint(hints);
RenderedImage source = args.getRenderedSource(0);
if (!MediaLibAccessor.isMediaLibCompatible(args, layout)
|| !MediaLibAccessor.hasSameNumBands(args, layout)
||
// Medialib cannot deal with source image having tiles with any
// dimension greater than or equal to 32768
source.getTileWidth() >= 32768
|| source.getTileHeight() >= 32768) {
return null;
}
/* Get BorderExtender from hints if any. */
BorderExtender extender = RIFUtil.getBorderExtenderHint(hints);
Warp warp = (Warp) args.getObjectParameter(0);
Interpolation interp = (Interpolation) args.getObjectParameter(1);
double[] backgroundValues = (double[]) args.getObjectParameter(2);
int filter = -1;
if (interp instanceof InterpolationNearest) {
filter = Constants.MLIB_NEAREST;
} else if (interp instanceof InterpolationBilinear) {
filter = Constants.MLIB_BILINEAR;
} else if (interp instanceof InterpolationBicubic) {
filter = Constants.MLIB_BICUBIC;
} else if (interp instanceof InterpolationBicubic2) {
filter = Constants.MLIB_BICUBIC2;
} else if (interp instanceof InterpolationTable) {;
// filter = Constants.MLIB_TABLE; not defined yet;
} else {
/* Other kinds of interpolation cannot be handled via mlib. */
return null;
}
if (warp instanceof WarpGrid) {
if (interp instanceof InterpolationTable) {
return new MlibWarpGridTableOpImage(
source, extender, hints, layout, (WarpGrid) warp, interp, backgroundValues);
} else {
return new MlibWarpGridOpImage(
source, extender, hints, layout, (WarpGrid) warp, interp, filter, backgroundValues);
}
} else if (warp instanceof WarpPolynomial) {
if (interp instanceof InterpolationTable) {
return new MlibWarpPolynomialTableOpImage(
source, extender, hints, layout, (WarpPolynomial) warp, interp, backgroundValues);
} else {
return new MlibWarpPolynomialOpImage(
source,
extender,
hints,
layout,
(WarpPolynomial) warp,
interp,
filter,
backgroundValues);
}
} else {
return null;
}
}
