public long getSizeInBytes()
{
long size = 0L;
java.awt.image.Raster raster = this.bufferedImage.getRaster();
if (raster != null)
{
java.awt.image.DataBuffer db = raster.getDataBuffer();
if (db != null)
{
size = sizeOfDataBuffer(db);
}
}
return(size);
}
/// <summary>
/// Returns the bounding box of the transformed destination. The
/// rectangle returned will be the actual bounding box of the
/// transformed points. The coordinates of the upper-left corner
/// of the returned rectangle might not be (0, 0).
/// </summary>
/// <param name="src"> The <CODE>Raster</CODE> to be transformed.
/// </param>
/// <returns> The <CODE>Rectangle2D</CODE> representing the destination's
/// bounding box. </returns>
public Rectangle2D GetBounds2D(Raster src)
{
int w = src.Width;
int h = src.Height;
// Get the bounding box of the src and transform the corners
float[] pts = new float[] { 0, 0, w, 0, w, h, 0, h };
Xform.Transform(pts, 0, pts, 0, 4);
// Get the min, max of the dst
float fmaxX = pts[0];
float fmaxY = pts[1];
float fminX = pts[0];
float fminY = pts[1];
for (int i = 2; i < 8; i += 2)
{
if (pts[i] > fmaxX)
{
fmaxX = pts[i];
}
else if (pts[i] < fminX)
{
fminX = pts[i];
}
if (pts[i + 1] > fmaxY)
{
fmaxY = pts[i + 1];
}
else if (pts[i + 1] < fminY)
{
fminY = pts[i + 1];
}
}
return(new Rectangle2D.Float(fminX, fminY, fmaxX - fminX, fmaxY - fminY));
}
/// <summary>
/// Returns <code>true</code> if <code>raster</code> is compatible
/// with this <code>ColorModel</code> and <code>false</code> if it is
/// not.
/// </summary>
public bool isCompatibleRaster(Raster @raster)
{
return default(bool);
}
/// <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);
}
/// <summary>
/// Returns the bounding box of the filtered destination Raster. Since
/// this is not a geometric operation, the bounding box does not
/// change.
/// </summary>
public Rectangle2D GetBounds2D(Raster src)
{
return(src.Bounds);
}
/// <summary>
/// Rescales the pixel data in the source Raster.
/// If the destination Raster is null, a new Raster will be created.
/// The source and destination must have the same number of bands.
/// Otherwise, an IllegalArgumentException is thrown.
/// Note that the number of scaling factors/offsets in this object must
/// meet the restrictions stated in the class comments above.
/// Otherwise, an IllegalArgumentException is thrown. </summary>
/// <param name="src"> the <code>Raster</code> to be filtered </param>
/// <param name="dst"> the destination for the filtering operation
/// or <code>null</code> </param>
/// <returns> the filtered <code>WritableRaster</code>. </returns>
/// <exception cref="IllegalArgumentException"> if <code>src</code> and
/// <code>dst</code> do not have the same number of bands,
/// or if the number of scaling factors and offsets in this
/// <code>RescaleOp</code> do not meet the requirements
/// stated in the class comments. </exception>
public WritableRaster Filter(Raster src, WritableRaster dst)
{
int numBands = src.NumBands;
int width = src.Width;
int height = src.Height;
int[] srcPix = null;
int step = 0;
int tidx = 0;
// Create a new destination Raster, if needed
if (dst == null)
{
dst = CreateCompatibleDestRaster(src);
}
else if (height != dst.Height || width != dst.Width)
{
throw new IllegalArgumentException("Width or height of Rasters do not " + "match");
}
else if (numBands != dst.NumBands)
{
// Make sure that the number of bands are equal
throw new IllegalArgumentException("Number of bands in src " + numBands + " does not equal number of bands in dest " + dst.NumBands);
}
// Make sure that the arrays match
// Make sure that the low/high/constant arrays match
if (Length != 1 && Length != src.NumBands)
{
throw new IllegalArgumentException("Number of scaling constants " + "does not equal the number of" + " of bands in the src raster");
}
//
// Try for a native raster rescale first
//
if (ImagingLib.filter(this, src, dst) != null)
{
return(dst);
}
//
// Native raster rescale failed.
// Try to see if a lookup operation can be used
//
if (CanUseLookup(src, dst))
{
int srcNgray = (1 << SrcNbits);
int dstNgray = (1 << DstNbits);
if (dstNgray == 256)
{
ByteLookupTable lut = CreateByteLut(ScaleFactors, Offsets, numBands, srcNgray);
LookupOp op = new LookupOp(lut, Hints);
op.Filter(src, dst);
}
else
{
ShortLookupTable lut = CreateShortLut(ScaleFactors, Offsets, numBands, srcNgray);
LookupOp op = new LookupOp(lut, Hints);
op.Filter(src, dst);
}
}
else
{
//
// Fall back to the slow code
//
if (Length > 1)
{
step = 1;
}
int sminX = src.MinX;
int sY = src.MinY;
int dminX = dst.MinX;
int dY = dst.MinY;
int sX;
int dX;
//
// Determine bits per band to determine maxval for clamps.
// The min is assumed to be zero.
// REMIND: This must change if we ever support signed data types.
//
int nbits;
int[] dstMax = new int[numBands];
int[] dstMask = new int[numBands];
SampleModel dstSM = dst.SampleModel;
for (int z = 0; z < numBands; z++)
{
nbits = dstSM.GetSampleSize(z);
dstMax[z] = (1 << nbits) - 1;
dstMask[z] = ~(dstMax[z]);
}
int val;
for (int y = 0; y < height; y++, sY++, dY++)
{
dX = dminX;
sX = sminX;
for (int x = 0; x < width; x++, sX++, dX++)
{
// Get data for all bands at this x,y position
srcPix = src.GetPixel(sX, sY, srcPix);
tidx = 0;
for (int z = 0; z < numBands; z++, tidx += step)
{
val = (int)(srcPix[z] * ScaleFactors[tidx] + Offsets[tidx]);
// Clamp
if ((val & dstMask[z]) != 0)
{
if (val < 0)
{
val = 0;
}
else
{
val = dstMax[z];
}
}
srcPix[z] = val;
}
// Put it back for all bands
dst.SetPixel(dX, dY, srcPix);
}
}
}
return(dst);
}
/// <summary>
/// Constructs a Raster with the given SampleModel, DataBuffer, and
/// parent.
/// </summary>
public Raster(SampleModel @sampleModel, DataBuffer @dataBuffer, Rectangle @aRegion, Point @sampleModelTranslate, Raster @parent)
{
}
/// <summary>
/// Creates a zeroed destination image with the correct size and number of
/// bands. If destCM is <code>null</code>, an appropriate
/// <code>ColorModel</code> will be used. </summary>
/// <param name="src"> Source image for the filter operation. </param>
/// <param name="destCM"> the destination's <code>ColorModel</code>, which
/// can be <code>null</code>. </param>
/// <returns> a filtered destination <code>BufferedImage</code>. </returns>
public virtual BufferedImage CreateCompatibleDestImage(BufferedImage src, ColorModel destCM)
{
BufferedImage image;
int w = src.Width;
int h = src.Height;
int transferType = DataBuffer.TYPE_BYTE;
if (destCM == null)
{
ColorModel cm = src.ColorModel;
Raster raster = src.Raster;
if (cm is ComponentColorModel)
{
DataBuffer db = raster.DataBuffer;
bool hasAlpha = cm.HasAlpha();
bool isPre = cm.AlphaPremultiplied;
int trans = cm.Transparency;
int[] nbits = null;
if (Ltable is ByteLookupTable)
{
if (db.DataType == db.TYPE_USHORT)
{
// Dst raster should be of type byte
if (hasAlpha)
{
nbits = new int[2];
if (trans == cm.BITMASK)
{
nbits[1] = 1;
}
else
{
nbits[1] = 8;
}
}
else
{
nbits = new int[1];
}
nbits[0] = 8;
}
// For byte, no need to change the cm
}
else if (Ltable is ShortLookupTable)
{
transferType = DataBuffer.TYPE_USHORT;
if (db.DataType == db.TYPE_BYTE)
{
if (hasAlpha)
{
nbits = new int[2];
if (trans == cm.BITMASK)
{
nbits[1] = 1;
}
else
{
nbits[1] = 16;
}
}
else
{
nbits = new int[1];
}
nbits[0] = 16;
}
}
if (nbits != null)
{
cm = new ComponentColorModel(cm.ColorSpace, nbits, hasAlpha, isPre, trans, transferType);
}
}
image = new BufferedImage(cm, cm.CreateCompatibleWritableRaster(w, h), cm.AlphaPremultiplied, null);
}
else
{
image = new BufferedImage(destCM, destCM.CreateCompatibleWritableRaster(w, h), destCM.AlphaPremultiplied, null);
}
return(image);
}
/// <summary>
/// Encodes and writes raster data as a 24-bit bitmap.
/// </summary>
/// <param name="raster">
/// the source raster data </param>
private void Write24(Raster raster)
{
int width = raster.getWidth();
int height = raster.getHeight();
// calculate bytes per line
int bytesPerLine = GetBytesPerLine24(width);
// write lines
for (int y = height - 1; y >= 0; y--)
{
// write pixel data for each line
for (int x = 0; x < width; x++)
{
// get RGB values for pixel
byte r = (byte)raster.getSample(x, y, 0);
byte g = (byte)raster.getSample(x, y, 1);
byte b = (byte)raster.getSample(x, y, 2);
// write RGB values
writer.Write(b);
writer.Write(g);
writer.Write(r);
}
// write padding bytes at end of line
for (int i = width * 3; i < bytesPerLine; i++)
{
writer.Write((byte)0);
}
}
}
/// <summary>
/// Copies pixels from Raster srcRaster to this WritableRaster.
/// </summary>
public void setRect(Raster @srcRaster)
{
}
/// <summary>
/// Encodes and writes raster data as a 4-bit bitmap.
/// </summary>
/// <param name="raster">
/// the source raster data </param>
private void Write4(Raster raster)
{
int width = raster.getWidth();
int height = raster.getHeight();
// calculate bytes per line
int bytesPerLine = GetBytesPerLine4(width);
// line buffer
byte[] line = new byte[bytesPerLine];
// encode and write lines
for (int y = height - 1; y >= 0; y--)
{
// clear line buffer
for (int i = 0; i < bytesPerLine; i++)
{
line[i] = 0;
}
// encode raster data for line
for (int x = 0; x < width; x++)
{
// calculate buffer index
int bi = x / 2;
// calculate nibble index (high order or low order)
int i = x % 2;
// get color index
int index = raster.getSample(x, y, 0);
// set color index in buffer
line[bi] = SetNibble(line[bi], i, index);
}
// write line data (padding bytes included)
writer.Write(line);
}
}
/// <summary>
/// Encodes and writes raster data as an 8-bit bitmap.
/// </summary>
/// <param name="raster">
/// the source raster data </param>
private void Write8(Raster raster)
{
int width = raster.getWidth();
int height = raster.getHeight();
// calculate bytes per line
int bytesPerLine = GetBytesPerLine8(width);
// write lines
for (int y = height - 1; y >= 0; y--)
{
// write raster data for each line
for (int x = 0; x < width; x++)
{
// get color index for pixel
byte index = (byte)raster.getSample(x, y, 0);
// write color index
writer.Write(index);
}
// write padding bytes at end of line
for (int i = width; i < bytesPerLine; i++)
{
writer.Write((byte)0);
}
}
}
/// <summary>
/// Encodes and writes raster data as a 1-bit bitmap.
/// </summary>
/// <param name="raster">
/// the source raster data </param>
private void Write1(Raster raster)
{
int bytesPerLine = GetBytesPerLine1(raster.getWidth());
byte[] line = new byte[bytesPerLine];
for (int y = raster.getHeight() - 1; y >= 0; y--)
{
for (int i = 0; i < bytesPerLine; i++)
{
line[i] = 0;
}
for (int x = 0; x < raster.getWidth(); x++)
{
int bi = x / 8;
int i = x % 8;
int index = raster.getSample(x, y, 0);
line[bi] = SetBit(line[bi], i, index);
}
writer.Write(line);
}
}
/// <summary>
/// Sets a rectangular region of the image to the contents of the
/// specified <code>Raster</code> <code>r</code>, which is
/// assumed to be in the same coordinate space as the
/// <code>BufferedImage</code>.
/// </summary>
public void setData(Raster @r)
{
}
/// <summary>
/// Creates a zeroed-destination <code>Raster</code> with the correct
/// size and number of bands, given this source. </summary>
/// <param name="src"> the source <code>Raster</code> </param>
/// <returns> the zeroed-destination <code>Raster</code>. </returns>
public virtual WritableRaster CreateCompatibleDestRaster(Raster src)
{
return(src.CreateCompatibleWritableRaster(src.Width, src.Height));
}
private BufferedImage NonICCBIFilter(BufferedImage src, ColorSpace srcColorSpace, BufferedImage dst, ColorSpace dstColorSpace)
{
int w = src.Width;
int h = src.Height;
ICC_ColorSpace ciespace = (ICC_ColorSpace)ColorSpace.GetInstance(ColorSpace.CS_CIEXYZ);
if (dst == null)
{
dst = CreateCompatibleDestImage(src, null);
dstColorSpace = dst.ColorModel.ColorSpace;
}
else
{
if ((h != dst.Height) || (w != dst.Width))
{
throw new IllegalArgumentException("Width or height of BufferedImages do not match");
}
}
Raster srcRas = src.Raster;
WritableRaster dstRas = dst.Raster;
ColorModel srcCM = src.ColorModel;
ColorModel dstCM = dst.ColorModel;
int srcNumComp = srcCM.NumColorComponents;
int dstNumComp = dstCM.NumColorComponents;
bool dstHasAlpha = dstCM.HasAlpha();
bool needSrcAlpha = srcCM.HasAlpha() && dstHasAlpha;
ColorSpace[] list;
if ((CSList == null) && (ProfileList.Length != 0))
{
/* possible non-ICC src, some profiles, possible non-ICC dst */
bool nonICCSrc, nonICCDst;
ICC_Profile srcProfile, dstProfile;
if (!(srcColorSpace is ICC_ColorSpace))
{
nonICCSrc = true;
srcProfile = ciespace.Profile;
}
else
{
nonICCSrc = false;
srcProfile = ((ICC_ColorSpace)srcColorSpace).Profile;
}
if (!(dstColorSpace is ICC_ColorSpace))
{
nonICCDst = true;
dstProfile = ciespace.Profile;
}
else
{
nonICCDst = false;
dstProfile = ((ICC_ColorSpace)dstColorSpace).Profile;
}
/* make a new transform if needed */
if ((ThisTransform == null) || (ThisSrcProfile != srcProfile) || (ThisDestProfile != dstProfile))
{
UpdateBITransform(srcProfile, dstProfile);
}
// process per scanline
float maxNum = 65535.0f; // use 16-bit precision in CMM
ColorSpace cs;
int iccSrcNumComp;
if (nonICCSrc)
{
cs = ciespace;
iccSrcNumComp = 3;
}
else
{
cs = srcColorSpace;
iccSrcNumComp = srcNumComp;
}
float[] srcMinVal = new float[iccSrcNumComp];
float[] srcInvDiffMinMax = new float[iccSrcNumComp];
for (int i = 0; i < srcNumComp; i++)
{
srcMinVal[i] = cs.GetMinValue(i);
srcInvDiffMinMax[i] = maxNum / (cs.GetMaxValue(i) - srcMinVal[i]);
}
int iccDstNumComp;
if (nonICCDst)
{
cs = ciespace;
iccDstNumComp = 3;
}
else
{
cs = dstColorSpace;
iccDstNumComp = dstNumComp;
}
float[] dstMinVal = new float[iccDstNumComp];
float[] dstDiffMinMax = new float[iccDstNumComp];
for (int i = 0; i < dstNumComp; i++)
{
dstMinVal[i] = cs.GetMinValue(i);
dstDiffMinMax[i] = (cs.GetMaxValue(i) - dstMinVal[i]) / maxNum;
}
float[] dstColor;
if (dstHasAlpha)
{
int size = ((dstNumComp + 1) > 3) ? (dstNumComp + 1) : 3;
dstColor = new float[size];
}
else
{
int size = (dstNumComp > 3) ? dstNumComp : 3;
dstColor = new float[size];
}
short[] srcLine = new short[w * iccSrcNumComp];
short[] dstLine = new short[w * iccDstNumComp];
Object pixel;
float[] color;
float[] alpha = null;
if (needSrcAlpha)
{
alpha = new float[w];
}
int idx;
// process each scanline
for (int y = 0; y < h; y++)
{
// convert src scanline
pixel = null;
color = null;
idx = 0;
for (int x = 0; x < w; x++)
{
pixel = srcRas.GetDataElements(x, y, pixel);
color = srcCM.GetNormalizedComponents(pixel, color, 0);
if (needSrcAlpha)
{
alpha[x] = color[srcNumComp];
}
if (nonICCSrc)
{
color = srcColorSpace.ToCIEXYZ(color);
}
for (int i = 0; i < iccSrcNumComp; i++)
{
srcLine[idx++] = (short)((color[i] - srcMinVal[i]) * srcInvDiffMinMax[i] + 0.5f);
}
}
// color convert srcLine to dstLine
ThisTransform.colorConvert(srcLine, dstLine);
// convert dst scanline
pixel = null;
idx = 0;
for (int x = 0; x < w; x++)
{
for (int i = 0; i < iccDstNumComp; i++)
{
dstColor[i] = ((float)(dstLine[idx++] & 0xffff)) * dstDiffMinMax[i] + dstMinVal[i];
}
if (nonICCDst)
{
color = srcColorSpace.FromCIEXYZ(dstColor);
for (int i = 0; i < dstNumComp; i++)
{
dstColor[i] = color[i];
}
}
if (needSrcAlpha)
{
dstColor[dstNumComp] = alpha[x];
}
else if (dstHasAlpha)
{
dstColor[dstNumComp] = 1.0f;
}
pixel = dstCM.GetDataElements(dstColor, 0, pixel);
dstRas.SetDataElements(x, y, pixel);
}
}
}
else
{
/* possible non-ICC src, possible CSList, possible non-ICC dst */
// process per pixel
int numCS;
if (CSList == null)
{
numCS = 0;
}
else
{
numCS = CSList.Length;
}
float[] dstColor;
if (dstHasAlpha)
{
dstColor = new float[dstNumComp + 1];
}
else
{
dstColor = new float[dstNumComp];
}
Object spixel = null;
Object dpixel = null;
float[] color = null;
float[] tmpColor;
// process each pixel
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
spixel = srcRas.GetDataElements(x, y, spixel);
color = srcCM.GetNormalizedComponents(spixel, color, 0);
tmpColor = srcColorSpace.ToCIEXYZ(color);
for (int i = 0; i < numCS; i++)
{
tmpColor = CSList[i].FromCIEXYZ(tmpColor);
tmpColor = CSList[i].ToCIEXYZ(tmpColor);
}
tmpColor = dstColorSpace.FromCIEXYZ(tmpColor);
for (int i = 0; i < dstNumComp; i++)
{
dstColor[i] = tmpColor[i];
}
if (needSrcAlpha)
{
dstColor[dstNumComp] = color[srcNumComp];
}
else if (dstHasAlpha)
{
dstColor[dstNumComp] = 1.0f;
}
dpixel = dstCM.GetDataElements(dstColor, 0, dpixel);
dstRas.SetDataElements(x, y, dpixel);
}
}
}
return(dst);
}
/// <summary>
/// Encodes and writes raster data, together with alpha (transparency) data,
/// as a 32-bit bitmap.
/// </summary>
/// <param name="raster">
/// the source raster data </param>
/// <param name="alpha">
/// the source alpha data </param>
private void Write32(Raster raster, Raster alpha)
{
int width = raster.getWidth();
int height = raster.getHeight();
// write lines
for (int y = height - 1; y >= 0; y--)
{
// write pixel data for each line
for (int x = 0; x < width; x++)
{
// get RGBA values
byte r = (byte)raster.getSample(x, y, 0);
byte g = (byte)raster.getSample(x, y, 1);
byte b = (byte)raster.getSample(x, y, 2);
byte a = (byte)alpha.getSample(x, y, 0);
// write RGBA values
writer.Write(b);
writer.Write(g);
writer.Write(r);
writer.Write(a);
}
}
}
/// <summary>
/// Copies pixels from Raster srcRaster to this WritableRaster.
/// </summary>
public void setRect(int @dx, int @dy, Raster @srcRaster)
{
}
/// <summary>
/// Transforms the <CODE>Raster</CODE> using the matrix specified in the
/// constructor. An <CODE>IllegalArgumentException</CODE> may be thrown if
/// the number of bands in the source or destination is incompatible with
/// the matrix. See the class comments for more details.
/// <para>
/// If the destination is null, it will be created with a number of bands
/// equalling the number of rows in the matrix. No exception is thrown
/// if the operation causes a data overflow.
///
/// </para>
/// </summary>
/// <param name="src"> The <CODE>Raster</CODE> to be filtered. </param>
/// <param name="dst"> The <CODE>Raster</CODE> in which to store the results
/// of the filter operation.
/// </param>
/// <returns> The filtered <CODE>Raster</CODE>.
/// </returns>
/// <exception cref="IllegalArgumentException"> If the number of bands in the
/// source or destination is incompatible with the matrix. </exception>
public virtual WritableRaster Filter(Raster src, WritableRaster dst)
{
int nBands = src.NumBands;
if (Ncols != nBands && Ncols != (nBands + 1))
{
throw new IllegalArgumentException("Number of columns in the " + "matrix (" + Ncols + ") must be equal to the number" + " of bands ([+1]) in src (" + nBands + ").");
}
if (dst == null)
{
dst = CreateCompatibleDestRaster(src);
}
else if (Nrows != dst.NumBands)
{
throw new IllegalArgumentException("Number of rows in the " + "matrix (" + Nrows + ") must be equal to the number" + " of bands ([+1]) in dst (" + nBands + ").");
}
if (ImagingLib.filter(this, src, dst) != null)
{
return(dst);
}
int[] pixel = null;
int[] dstPixel = new int[dst.NumBands];
float accum;
int sminX = src.MinX;
int sY = src.MinY;
int dminX = dst.MinX;
int dY = dst.MinY;
int sX;
int dX;
if (Ncols == nBands)
{
for (int y = 0; y < src.Height; y++, sY++, dY++)
{
dX = dminX;
sX = sminX;
for (int x = 0; x < src.Width; x++, sX++, dX++)
{
pixel = src.GetPixel(sX, sY, pixel);
for (int r = 0; r < Nrows; r++)
{
accum = 0.0f;
for (int c = 0; c < Ncols; c++)
{
accum += Matrix_Renamed[r][c] * pixel[c];
}
dstPixel[r] = (int)accum;
}
dst.SetPixel(dX, dY, dstPixel);
}
}
}
else
{
// Need to add constant
for (int y = 0; y < src.Height; y++, sY++, dY++)
{
dX = dminX;
sX = sminX;
for (int x = 0; x < src.Width; x++, sX++, dX++)
{
pixel = src.GetPixel(sX, sY, pixel);
for (int r = 0; r < Nrows; r++)
{
accum = 0.0f;
for (int c = 0; c < nBands; c++)
{
accum += Matrix_Renamed[r][c] * pixel[c];
}
dstPixel[r] = (int)(accum + Matrix_Renamed[r][nBands]);
}
dst.SetPixel(dX, dY, dstPixel);
}
}
}
return(dst);
}
/// <summary>
/// Sets the data for a rectangle of pixels from an input Raster.
/// </summary>
public void setDataElements(int @x, int @y, Raster @inRaster)
{
}
/// <summary>
/// Sets a rectangular region of the image to the contents of the
/// specified <code>Raster</code> <code>r</code>, which is
/// assumed to be in the same coordinate space as the
/// <code>BufferedImage</code>.
/// </summary>
public void setData(Raster @r)
{
}
/// <summary>
/// Performs a lookup operation on a <code>Raster</code>.
/// If the destination <code>Raster</code> is <code>null</code>,
/// a new <code>Raster</code> will be created.
/// The <code>IllegalArgumentException</code> might be thrown
/// if the source <code>Raster</code> and the destination
/// <code>Raster</code> do not have the same
/// number of bands or if the number of arrays in the
/// <code>LookupTable</code> does not meet the
/// restrictions stated in the class comment above. </summary>
/// <param name="src"> the source <code>Raster</code> to filter </param>
/// <param name="dst"> the destination <code>WritableRaster</code> for the
/// filtered <code>src</code> </param>
/// <returns> the filtered <code>WritableRaster</code>. </returns>
/// <exception cref="IllegalArgumentException"> if the source and destinations
/// rasters do not have the same number of bands, or the
/// number of arrays in the <code>LookupTable</code> does
/// not meet the restrictions described in the class comments.
/// </exception>
public WritableRaster Filter(Raster src, WritableRaster dst)
{
int numBands = src.NumBands;
int dstLength = dst.NumBands;
int height = src.Height;
int width = src.Width;
int[] srcPix = new int[numBands];
// Create a new destination Raster, if needed
if (dst == null)
{
dst = CreateCompatibleDestRaster(src);
}
else if (height != dst.Height || width != dst.Width)
{
throw new IllegalArgumentException("Width or height of Rasters do not " + "match");
}
dstLength = dst.NumBands;
if (numBands != dstLength)
{
throw new IllegalArgumentException("Number of channels in the src (" + numBands + ") does not match number of channels" + " in the destination (" + dstLength + ")");
}
int numComponents = Ltable.NumComponents;
if (numComponents != 1 && numComponents != src.NumBands)
{
throw new IllegalArgumentException("Number of arrays in the " + " lookup table (" + numComponents + " is not compatible with the " + " src Raster: " + src);
}
if (ImagingLib.filter(this, src, dst) != null)
{
return(dst);
}
// Optimize for cases we know about
if (Ltable is ByteLookupTable)
{
ByteFilter((ByteLookupTable)Ltable, src, dst, width, height, numBands);
}
else if (Ltable is ShortLookupTable)
{
ShortFilter((ShortLookupTable)Ltable, src, dst, width, height, numBands);
}
else
{
// Not one we recognize so do it slowly
int sminX = src.MinX;
int sY = src.MinY;
int dminX = dst.MinX;
int dY = dst.MinY;
for (int y = 0; y < height; y++, sY++, dY++)
{
int sX = sminX;
int dX = dminX;
for (int x = 0; x < width; x++, sX++, dX++)
{
// Find data for all bands at this x,y position
src.GetPixel(sX, sY, srcPix);
// Lookup the data for all bands at this x,y position
Ltable.LookupPixel(srcPix, srcPix);
// Put it back for all bands
dst.SetPixel(dX, dY, srcPix);
}
}
}
return(dst);
}
/// <summary>
/// Returns a new <code>BufferedImage</code> of TYPE_INT_ARGB or
/// TYPE_INT_RGB that has a <code>Raster</code> with pixel data
/// computed by expanding the indices in the source <code>Raster</code>
/// using the color/alpha component arrays of this <code>ColorModel</code>.
/// </summary>
public BufferedImage convertToIntDiscrete(Raster @raster, bool @forceARGB)
{
return(default(BufferedImage));
}
/// <summary>
/// Creates a zeroed destination Raster with the correct size and number
/// of bands, given this source.
/// </summary>
public virtual WritableRaster CreateCompatibleDestRaster(Raster src)
{
return(src.CreateCompatibleWritableRaster());
}
/// <summary>
/// Copies pixels from Raster srcRaster to this WritableRaster.
/// </summary>
public void setRect(Raster @srcRaster)
{
}
/// <summary>
/// Returns <code>true</code> if <code>raster</code> is compatible
/// with this <code>ColorModel</code> or <code>false</code> if it
/// is not compatible with this <code>ColorModel</code>.
/// </summary>
public bool isCompatibleRaster(Raster @raster)
{
return(default(bool));
}
/// <summary>
/// Constructs a Raster with the given SampleModel, DataBuffer, and
/// parent.
/// </summary>
public Raster(SampleModel @sampleModel, DataBuffer @dataBuffer, Rectangle @aRegion, Point @sampleModelTranslate, Raster @parent)
{
}
/// <summary>
/// Copies pixels from Raster srcRaster to this WritableRaster.
/// </summary>
public void setRect(int @dx, int @dy, Raster @srcRaster)
{
}
/// <summary>
/// Creates a zeroed destination <CODE>Raster</CODE> with the correct size
/// and number of bands. A <CODE>RasterFormatException</CODE> may be thrown
/// if the transformed width or height is equal to 0.
/// </summary>
/// <param name="src"> The <CODE>Raster</CODE> to be transformed.
/// </param>
/// <returns> The zeroed destination <CODE>Raster</CODE>. </returns>
public virtual WritableRaster CreateCompatibleDestRaster(Raster src)
{
Rectangle2D r = GetBounds2D(src);
return(src.CreateCompatibleWritableRaster((int)r.X, (int)r.Y, (int)r.Width, (int)r.Height));
}
/// <summary>
/// Sets the data for a rectangle of pixels from an input Raster.
/// </summary>
public void setDataElements(int @x, int @y, Raster @inRaster)
{
}
/* color convert a Raster - handles byte, ushort, int, short, float,
* or double transferTypes */
private WritableRaster NonICCRasterFilter(Raster src, WritableRaster dst)
{
if (CSList.Length != 2)
{
throw new IllegalArgumentException("Destination ColorSpace is undefined");
}
if (src.NumBands != CSList[0].NumComponents)
{
throw new IllegalArgumentException("Numbers of source Raster bands and source color space " + "components do not match");
}
if (dst == null)
{
dst = CreateCompatibleDestRaster(src);
}
else
{
if (src.Height != dst.Height || src.Width != dst.Width)
{
throw new IllegalArgumentException("Width or height of Rasters do not match");
}
if (dst.NumBands != CSList[1].NumComponents)
{
throw new IllegalArgumentException("Numbers of destination Raster bands and destination " + "color space components do not match");
}
}
if (SrcMinVals == null)
{
GetMinMaxValsFromColorSpaces(CSList[0], CSList[1]);
}
SampleModel srcSM = src.SampleModel;
SampleModel dstSM = dst.SampleModel;
bool srcIsFloat, dstIsFloat;
int srcTransferType = src.TransferType;
int dstTransferType = dst.TransferType;
if ((srcTransferType == DataBuffer.TYPE_FLOAT) || (srcTransferType == DataBuffer.TYPE_DOUBLE))
{
srcIsFloat = true;
}
else
{
srcIsFloat = false;
}
if ((dstTransferType == DataBuffer.TYPE_FLOAT) || (dstTransferType == DataBuffer.TYPE_DOUBLE))
{
dstIsFloat = true;
}
else
{
dstIsFloat = false;
}
int w = src.Width;
int h = src.Height;
int srcNumBands = src.NumBands;
int dstNumBands = dst.NumBands;
float[] srcScaleFactor = null;
float[] dstScaleFactor = null;
if (!srcIsFloat)
{
srcScaleFactor = new float[srcNumBands];
for (int i = 0; i < srcNumBands; i++)
{
if (srcTransferType == DataBuffer.TYPE_SHORT)
{
srcScaleFactor[i] = (SrcMaxVals[i] - SrcMinVals[i]) / 32767.0f;
}
else
{
srcScaleFactor[i] = (SrcMaxVals[i] - SrcMinVals[i]) / ((float)((1 << srcSM.GetSampleSize(i)) - 1));
}
}
}
if (!dstIsFloat)
{
dstScaleFactor = new float[dstNumBands];
for (int i = 0; i < dstNumBands; i++)
{
if (dstTransferType == DataBuffer.TYPE_SHORT)
{
dstScaleFactor[i] = 32767.0f / (DstMaxVals[i] - DstMinVals[i]);
}
else
{
dstScaleFactor[i] = ((float)((1 << dstSM.GetSampleSize(i)) - 1)) / (DstMaxVals[i] - DstMinVals[i]);
}
}
}
int ys = src.MinY;
int yd = dst.MinY;
int xs, xd;
float sample;
float[] color = new float[srcNumBands];
float[] tmpColor;
ColorSpace srcColorSpace = CSList[0];
ColorSpace dstColorSpace = CSList[1];
// process each pixel
for (int y = 0; y < h; y++, ys++, yd++)
{
// get src scanline
xs = src.MinX;
xd = dst.MinX;
for (int x = 0; x < w; x++, xs++, xd++)
{
for (int i = 0; i < srcNumBands; i++)
{
sample = src.GetSampleFloat(xs, ys, i);
if (!srcIsFloat)
{
sample = sample * srcScaleFactor[i] + SrcMinVals[i];
}
color[i] = sample;
}
tmpColor = srcColorSpace.ToCIEXYZ(color);
tmpColor = dstColorSpace.FromCIEXYZ(tmpColor);
for (int i = 0; i < dstNumBands; i++)
{
sample = tmpColor[i];
if (!dstIsFloat)
{
sample = (sample - DstMinVals[i]) * dstScaleFactor[i];
}
dst.SetSample(xd, yd, i, sample);
}
}
}
return(dst);
}
