/// <summary>
/// ColorConverts the image data in the source Raster.
/// If the destination Raster is null, a new Raster will be created.
/// The number of bands in the source and destination Rasters must
/// meet the requirements explained above. The constructor used to
/// create this ColorConvertOp must have provided enough information
/// to define both source and destination color spaces. See above.
/// Otherwise, an exception is thrown. </summary>
/// <param name="src"> the source <code>Raster</code> to be converted </param>
/// <param name="dest"> the destination <code>WritableRaster</code>,
/// or <code>null</code> </param>
/// <returns> <code>dest</code> color converted from <code>src</code>
/// or a new, converted <code>WritableRaster</code>
/// if <code>dest</code> is <code>null</code> </returns>
/// <exception cref="IllegalArgumentException"> if the number of source or
/// destination bands is incorrect, the source or destination
/// color spaces are undefined, or this op was constructed
/// with one of the constructors that applies only to
/// operations on BufferedImages. </exception>
public WritableRaster Filter(Raster src, WritableRaster dest)
{
if (CSList != null)
{
/* non-ICC case */
return(NonICCRasterFilter(src, dest));
}
int nProfiles = ProfileList.Length;
if (nProfiles < 2)
{
throw new IllegalArgumentException("Source or Destination ColorSpace is undefined");
}
if (src.NumBands != ProfileList[0].NumComponents)
{
throw new IllegalArgumentException("Numbers of source Raster bands and source color space " + "components do not match");
}
if (dest == null)
{
dest = CreateCompatibleDestRaster(src);
}
else
{
if (src.Height != dest.Height || src.Width != dest.Width)
{
throw new IllegalArgumentException("Width or height of Rasters do not match");
}
if (dest.NumBands != ProfileList[nProfiles - 1].NumComponents)
{
throw new IllegalArgumentException("Numbers of destination Raster bands and destination " + "color space components do not match");
}
}
/* make a new transform if needed */
if (ThisRasterTransform == null)
{
int i1, whichTrans, renderState;
ColorTransform[] theTransforms;
/* make the transform list */
theTransforms = new ColorTransform [nProfiles];
/* initialize transform get loop */
if (ProfileList[0].ProfileClass == ICC_Profile.CLASS_OUTPUT)
{
/* if first profile is a printer
* render as colorimetric */
renderState = ICC_Profile.IcRelativeColorimetric;
}
else
{
renderState = ICC_Profile.IcPerceptual; /* render any other
* class perceptually */
}
whichTrans = ColorTransform.In;
PCMM mdl = CMSManager.Module;
/* get the transforms from each profile */
for (i1 = 0; i1 < nProfiles; i1++)
{
if (i1 == nProfiles - 1) // last profile?
{
whichTrans = ColorTransform.Out; // get output transform
}
else // check for abstract profile
{
if ((whichTrans == ColorTransform.Simulation) && (ProfileList[i1].ProfileClass == ICC_Profile.CLASS_ABSTRACT))
{
renderState = ICC_Profile.IcPerceptual;
whichTrans = ColorTransform.In;
}
}
theTransforms[i1] = mdl.createTransform(ProfileList[i1], renderState, whichTrans);
/* get this profile's rendering intent to select transform
* from next profile */
renderState = GetRenderingIntent(ProfileList[i1]);
/* "middle" profiles use simulation transform */
whichTrans = ColorTransform.Simulation;
}
/* make the net transform */
ThisRasterTransform = mdl.createTransform(theTransforms);
}
int srcTransferType = src.TransferType;
int dstTransferType = dest.TransferType;
if ((srcTransferType == DataBuffer.TYPE_FLOAT) || (srcTransferType == DataBuffer.TYPE_DOUBLE) || (dstTransferType == DataBuffer.TYPE_FLOAT) || (dstTransferType == DataBuffer.TYPE_DOUBLE))
{
if (SrcMinVals == null)
{
GetMinMaxValsFromProfiles(ProfileList[0], ProfileList[nProfiles - 1]);
}
/* color convert the raster */
ThisRasterTransform.colorConvert(src, dest, SrcMinVals, SrcMaxVals, DstMinVals, DstMaxVals);
}
else
{
/* color convert the raster */
ThisRasterTransform.colorConvert(src, dest);
}
return(dest);
}
private void UpdateBITransform(ICC_Profile srcProfile, ICC_Profile destProfile)
{
ICC_Profile[] theProfiles;
int i1, nProfiles, nTransforms, whichTrans, renderState;
ColorTransform[] theTransforms;
bool useSrc = false, useDest = false;
nProfiles = ProfileList.Length;
nTransforms = nProfiles;
if ((nProfiles == 0) || (srcProfile != ProfileList[0]))
{
nTransforms += 1;
useSrc = true;
}
if ((nProfiles == 0) || (destProfile != ProfileList[nProfiles - 1]) || (nTransforms < 2))
{
nTransforms += 1;
useDest = true;
}
/* make the profile list */
theProfiles = new ICC_Profile[nTransforms]; /* the list of profiles
* for this Op */
int idx = 0;
if (useSrc)
{
/* insert source as first profile */
theProfiles[idx++] = srcProfile;
}
for (i1 = 0; i1 < nProfiles; i1++)
{
/* insert profiles defined in this Op */
theProfiles[idx++] = ProfileList [i1];
}
if (useDest)
{
/* insert dest as last profile */
theProfiles[idx] = destProfile;
}
/* make the transform list */
theTransforms = new ColorTransform [nTransforms];
/* initialize transform get loop */
if (theProfiles[0].ProfileClass == ICC_Profile.CLASS_OUTPUT)
{
/* if first profile is a printer
* render as colorimetric */
renderState = ICC_Profile.IcRelativeColorimetric;
}
else
{
renderState = ICC_Profile.IcPerceptual; /* render any other
* class perceptually */
}
whichTrans = ColorTransform.In;
PCMM mdl = CMSManager.Module;
/* get the transforms from each profile */
for (i1 = 0; i1 < nTransforms; i1++)
{
if (i1 == nTransforms - 1) // last profile?
{
whichTrans = ColorTransform.Out; // get output transform
}
else // check for abstract profile
{
if ((whichTrans == ColorTransform.Simulation) && (theProfiles[i1].ProfileClass == ICC_Profile.CLASS_ABSTRACT))
{
renderState = ICC_Profile.IcPerceptual;
whichTrans = ColorTransform.In;
}
}
theTransforms[i1] = mdl.createTransform(theProfiles[i1], renderState, whichTrans);
/* get this profile's rendering intent to select transform
* from next profile */
renderState = GetRenderingIntent(theProfiles[i1]);
/* "middle" profiles use simulation transform */
whichTrans = ColorTransform.Simulation;
}
/* make the net transform */
ThisTransform = mdl.createTransform(theTransforms);
/* update corresponding source and dest profiles */
ThisSrcProfile = srcProfile;
ThisDestProfile = destProfile;
}
