ComponentSampleModelpublic class ComponentSampleModel extends SampleModel This class represents image data which is stored such that each sample
of a pixel occupies one data element of the DataBuffer. It stores the
N samples which make up a pixel in N separate data array elements.
Different bands may be in different banks of the DataBuffer.
Accessor methods are provided so that image data can be manipulated
directly. This class can support different kinds of interleaving, e.g.
band interleaving, scanline interleaving, and pixel interleaving.
Pixel stride is the number of data array elements between two samples
for the same band on the same scanline. Scanline stride is the number
of data array elements between a given sample and the corresponding sample
in the same column of the next scanline. Band offsets denote the number
of data array elements from the first data array element of the bank
of the DataBuffer holding each band to the first sample of the band.
The bands are numbered from 0 to N-1. This class can represent image
data for which each sample is an unsigned integral number which can be
stored in 8, 16, or 32 bits (using DataBuffer.TYPE_BYTE,
DataBuffer.TYPE_USHORT, or DataBuffer.TYPE_INT,
respectively), data for which each sample is a signed integral number
which can be stored in 16 bits (using DataBuffer.TYPE_SHORT),
or data for which each sample is a signed float or double quantity
(using DataBuffer.TYPE_FLOAT or
DataBuffer.TYPE_DOUBLE, respectively).
All samples of a given ComponentSampleModel
are stored with the same precision. All strides and offsets must be
non-negative. This class supports
{@link DataBuffer#TYPE_BYTE TYPE_BYTE},
{@link DataBuffer#TYPE_USHORT TYPE_USHORT},
{@link DataBuffer#TYPE_SHORT TYPE_SHORT},
{@link DataBuffer#TYPE_INT TYPE_INT},
{@link DataBuffer#TYPE_FLOAT TYPE_FLOAT},
{@link DataBuffer#TYPE_DOUBLE TYPE_DOUBLE}, |
| Fields Summary |
|---|
| protected int[] | bandOffsetsOffsets for all bands in data array elements. | | protected int[] | bankIndicesIndex for each bank storing a band of image data. | | protected int | numBandsThe number of bands in this
ComponentSampleModel. | | protected int | numBanksThe number of banks in this
ComponentSampleModel. | | protected int | scanlineStrideLine stride (in data array elements) of the region of image
data described by this ComponentSampleModel. | | protected int | pixelStridePixel stride (in data array elements) of the region of image
data described by this ComponentSampleModel. |
| Constructors Summary |
|---|
public ComponentSampleModel(int dataType, int w, int h, int pixelStride, int scanlineStride, int[] bandOffsets)Constructs a ComponentSampleModel with the specified parameters.
The number of bands will be given by the length of the bandOffsets array.
All bands will be stored in the first bank of the DataBuffer.
ColorModel.loadLibraries();
initIDs();
super(dataType, w, h, bandOffsets.length);
this.dataType = dataType;
this.pixelStride = pixelStride;
this.scanlineStride = scanlineStride;
this.bandOffsets = (int[])bandOffsets.clone();
numBands = bandOffsets.length;
if (pixelStride < 0) {
throw new IllegalArgumentException("Pixel stride must be >= 0");
}
// TODO - bug 4296691 - remove this check
if (scanlineStride < 0) {
throw new IllegalArgumentException("Scanline stride must be >= 0");
}
if (numBands < 1) {
throw new IllegalArgumentException("Must have at least one band.");
}
if ((dataType < DataBuffer.TYPE_BYTE) ||
(dataType > DataBuffer.TYPE_DOUBLE)) {
throw new IllegalArgumentException("Unsupported dataType.");
}
bankIndices = new int[numBands];
for (int i=0; i<numBands; i++) {
bankIndices[i] = 0;
}
| public ComponentSampleModel(int dataType, int w, int h, int pixelStride, int scanlineStride, int[] bankIndices, int[] bandOffsets)Constructs a ComponentSampleModel with the specified parameters.
The number of bands will be given by the length of the bandOffsets array.
Different bands may be stored in different banks of the DataBuffer.
super(dataType, w, h, bandOffsets.length);
this.dataType = dataType;
this.pixelStride = pixelStride;
this.scanlineStride = scanlineStride;
this.bandOffsets = (int[])bandOffsets.clone();
this.bankIndices = (int[]) bankIndices.clone();
if (pixelStride < 0) {
throw new IllegalArgumentException("Pixel stride must be >= 0");
}
// TODO - bug 4296691 - remove this check
if (scanlineStride < 0) {
throw new IllegalArgumentException("Scanline stride must be >= 0");
}
if ((dataType < DataBuffer.TYPE_BYTE) ||
(dataType > DataBuffer.TYPE_DOUBLE)) {
throw new IllegalArgumentException("Unsupported dataType.");
}
int maxBank = bankIndices[0];
if (maxBank < 0) {
throw new IllegalArgumentException("Index of bank 0 is less than "+
"0 ("+maxBank+")");
}
for (int i=1; i < bankIndices.length; i++) {
if (bankIndices[i] > maxBank) {
maxBank = bankIndices[i];
}
else if (bankIndices[i] < 0) {
throw new IllegalArgumentException("Index of bank "+i+
" is less than 0 ("+
maxBank+")");
}
}
numBanks = maxBank+1;
numBands = bandOffsets.length;
if (bandOffsets.length != bankIndices.length) {
throw new IllegalArgumentException("Length of bandOffsets must "+
"equal length of bankIndices.");
}
|
| Methods Summary |
|---|
| public java.awt.image.SampleModel | createCompatibleSampleModel(int w, int h)Creates a new ComponentSampleModel with the specified
width and height. The new SampleModel will have the same
number of bands, storage data type, interleaving scheme, and
pixel stride as this SampleModel.
SampleModel ret=null;
long size;
int minBandOff=bandOffsets[0];
int maxBandOff=bandOffsets[0];
for (int i=1; i<bandOffsets.length; i++) {
minBandOff = Math.min(minBandOff,bandOffsets[i]);
maxBandOff = Math.max(maxBandOff,bandOffsets[i]);
}
maxBandOff -= minBandOff;
int bands = bandOffsets.length;
int bandOff[];
int pStride = Math.abs(pixelStride);
int lStride = Math.abs(scanlineStride);
int bStride = Math.abs(maxBandOff);
if (pStride > lStride) {
if (pStride > bStride) {
if (lStride > bStride) { // pix > line > band
bandOff = new int[bandOffsets.length];
for (int i=0; i<bands; i++)
bandOff[i] = bandOffsets[i]-minBandOff;
lStride = bStride+1;
pStride = lStride*h;
} else { // pix > band > line
bandOff = orderBands(bandOffsets,lStride*h);
pStride = bands*lStride*h;
}
} else { // band > pix > line
pStride = lStride*h;
bandOff = orderBands(bandOffsets,pStride*w);
}
} else {
if (pStride > bStride) { // line > pix > band
bandOff = new int[bandOffsets.length];
for (int i=0; i<bands; i++)
bandOff[i] = bandOffsets[i]-minBandOff;
pStride = bStride+1;
lStride = pStride*w;
} else {
if (lStride > bStride) { // line > band > pix
bandOff = orderBands(bandOffsets,pStride*w);
lStride = bands*pStride*w;
} else { // band > line > pix
lStride = pStride*w;
bandOff = orderBands(bandOffsets,lStride*h);
}
}
}
// make sure we make room for negative offsets...
int base = 0;
if (scanlineStride < 0) {
base += lStride*h;
lStride *= -1;
}
if (pixelStride < 0) {
base += pStride*w;
pStride *= -1;
}
for (int i=0; i<bands; i++)
bandOff[i] += base;
return new ComponentSampleModel(dataType, w, h, pStride,
lStride, bankIndices, bandOff);
| | public java.awt.image.DataBuffer | createDataBuffer()Creates a DataBuffer that corresponds to this
ComponentSampleModel.
The DataBuffer object's data type, number of banks,
and size are be consistent with this ComponentSampleModel.
DataBuffer dataBuffer = null;
int size = (int)getBufferSize();
switch (dataType) {
case DataBuffer.TYPE_BYTE:
dataBuffer = new DataBufferByte(size, numBanks);
break;
case DataBuffer.TYPE_USHORT:
dataBuffer = new DataBufferUShort(size, numBanks);
break;
case DataBuffer.TYPE_SHORT:
dataBuffer = new DataBufferShort(size, numBanks);
break;
case DataBuffer.TYPE_INT:
dataBuffer = new DataBufferInt(size, numBanks);
break;
case DataBuffer.TYPE_FLOAT:
dataBuffer = new DataBufferFloat(size, numBanks);
break;
case DataBuffer.TYPE_DOUBLE:
dataBuffer = new DataBufferDouble(size, numBanks);
break;
}
return dataBuffer;
| | public java.awt.image.SampleModel | createSubsetSampleModel(int[] bands)Creates a new ComponentSampleModel with a subset of the bands
of this ComponentSampleModel. The new ComponentSampleModel can be
used with any DataBuffer that the existing ComponentSampleModel
can be used with. The new ComponentSampleModel/DataBuffer
combination will represent an image with a subset of the bands
of the original ComponentSampleModel/DataBuffer combination.
if (bands.length > bankIndices.length)
throw new RasterFormatException("There are only " +
bankIndices.length +
" bands");
int newBankIndices[] = new int[bands.length];
int newBandOffsets[] = new int[bands.length];
for (int i=0; i<bands.length; i++) {
newBankIndices[i] = bankIndices[bands[i]];
newBandOffsets[i] = bandOffsets[bands[i]];
}
return new ComponentSampleModel(this.dataType, width, height,
this.pixelStride,
this.scanlineStride,
newBankIndices, newBandOffsets);
| | public boolean | equals(java.lang.Object o)
if ((o == null) || !(o instanceof ComponentSampleModel)) {
return false;
}
ComponentSampleModel that = (ComponentSampleModel)o;
return this.width == that.width &&
this.height == that.height &&
this.numBands == that.numBands &&
this.dataType == that.dataType &&
Arrays.equals(this.bandOffsets, that.bandOffsets) &&
Arrays.equals(this.bankIndices, that.bankIndices) &&
this.numBands == that.numBands &&
this.numBanks == that.numBanks &&
this.scanlineStride == that.scanlineStride &&
this.pixelStride == that.pixelStride;
| | public final int[] | getBandOffsets()Returns the band offset for all bands.
return (int[])bandOffsets.clone();
| | public final int[] | getBankIndices()Returns the bank indices for all bands.
return (int[]) bankIndices.clone();
| | private long | getBufferSize()Returns the size of the data buffer (in data elements) needed
for a data buffer that matches this ComponentSampleModel.
int maxBandOff=bandOffsets[0];
for (int i=1; i<bandOffsets.length; i++)
maxBandOff = Math.max(maxBandOff,bandOffsets[i]);
long size = 0;
if (maxBandOff >= 0)
size += maxBandOff+1;
if (pixelStride > 0)
size += pixelStride * (width-1);
if (scanlineStride > 0)
size += scanlineStride*(height-1);
return size;
| | public java.lang.Object | getDataElements(int x, int y, java.lang.Object obj, java.awt.image.DataBuffer data)Returns data for a single pixel in a primitive array of type
TransferType. For a ComponentSampleModel,
this is the same as the data type, and samples are returned
one per array element. Generally, obj should
be passed in as null, so that the Object
is created automatically and is the right primitive data type.
The following code illustrates transferring data for one pixel from
DataBuffer db1, whose storage layout is
described by ComponentSampleModel csm1,
to DataBuffer db2, whose storage layout
is described by ComponentSampleModel csm2.
The transfer is usually more efficient than using
getPixel and setPixel.
ComponentSampleModel csm1, csm2;
DataBufferInt db1, db2;
csm2.setDataElements(x, y,
csm1.getDataElements(x, y, null, db1), db2);
Using getDataElements and setDataElements
to transfer between two DataBuffer/SampleModel
pairs is legitimate if the SampleModel objects have
the same number of bands, corresponding bands have the same number of
bits per sample, and the TransferTypes are the same.
If obj is not null, it should be a
primitive array of type TransferType.
Otherwise, a ClassCastException is thrown. An
ArrayIndexOutOfBoundsException might be thrown if the
coordinates are not in bounds, or if obj is not
null and is not large enough to hold
the pixel data.
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
int type = getTransferType();
int numDataElems = getNumDataElements();
int pixelOffset = y*scanlineStride + x*pixelStride;
switch(type) {
case DataBuffer.TYPE_BYTE:
byte[] bdata;
if (obj == null)
bdata = new byte[numDataElems];
else
bdata = (byte[])obj;
for (int i=0; i<numDataElems; i++) {
bdata[i] = (byte)data.getElem(bankIndices[i],
pixelOffset + bandOffsets[i]);
}
obj = (Object)bdata;
break;
case DataBuffer.TYPE_USHORT:
case DataBuffer.TYPE_SHORT:
short[] sdata;
if (obj == null)
sdata = new short[numDataElems];
else
sdata = (short[])obj;
for (int i=0; i<numDataElems; i++) {
sdata[i] = (short)data.getElem(bankIndices[i],
pixelOffset + bandOffsets[i]);
}
obj = (Object)sdata;
break;
case DataBuffer.TYPE_INT:
int[] idata;
if (obj == null)
idata = new int[numDataElems];
else
idata = (int[])obj;
for (int i=0; i<numDataElems; i++) {
idata[i] = data.getElem(bankIndices[i],
pixelOffset + bandOffsets[i]);
}
obj = (Object)idata;
break;
case DataBuffer.TYPE_FLOAT:
float[] fdata;
if (obj == null)
fdata = new float[numDataElems];
else
fdata = (float[])obj;
for (int i=0; i<numDataElems; i++) {
fdata[i] = data.getElemFloat(bankIndices[i],
pixelOffset + bandOffsets[i]);
}
obj = (Object)fdata;
break;
case DataBuffer.TYPE_DOUBLE:
double[] ddata;
if (obj == null)
ddata = new double[numDataElems];
else
ddata = (double[])obj;
for (int i=0; i<numDataElems; i++) {
ddata[i] = data.getElemDouble(bankIndices[i],
pixelOffset + bandOffsets[i]);
}
obj = (Object)ddata;
break;
}
return obj;
| | public final int | getNumDataElements()Returns the number of data elements needed to transfer a pixel
with the
{@link #getDataElements(int, int, Object, DataBuffer) } and
{@link #setDataElements(int, int, Object, DataBuffer) }
methods.
For a ComponentSampleModel, this is identical to the
number of bands.
return getNumBands();
| | public int | getOffset(int x, int y, int b)Gets the offset for band b of pixel (x,y).
A sample of band b can be retrieved from a
DataBuffer data
with a ComponentSampleModel csm as
data.getElem(csm.getOffset(x, y, b));
int offset = y*scanlineStride + x*pixelStride + bandOffsets[b];
return offset;
| | public int | getOffset(int x, int y)Gets the offset for the first band of pixel (x,y).
A sample of the first band can be retrieved from a
DataBuffer
data with a ComponentSampleModel
csm as
data.getElem(csm.getOffset(x, y));
int offset = y*scanlineStride + x*pixelStride + bandOffsets[0];
return offset;
| | public int[] | getPixel(int x, int y, int[] iArray, java.awt.image.DataBuffer data)Returns all samples for the specified pixel in an int array,
one sample per array element.
An ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds.
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
int pixels[];
if (iArray != null) {
pixels = iArray;
} else {
pixels = new int [numBands];
}
int pixelOffset = y*scanlineStride + x*pixelStride;
for (int i=0; i<numBands; i++) {
pixels[i] = data.getElem(bankIndices[i],
pixelOffset + bandOffsets[i]);
}
return pixels;
| | public final int | getPixelStride()Returns the pixel stride of this ComponentSampleModel.
return pixelStride;
| | public int[] | getPixels(int x, int y, int w, int h, int[] iArray, java.awt.image.DataBuffer data)Returns all samples for the specified rectangle of pixels in
an int array, one sample per array element.
An ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds.
if ((x < 0) || (y < 0) || (x + w > width) || (y + h > height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
int pixels[];
if (iArray != null) {
pixels = iArray;
} else {
pixels = new int [w*h*numBands];
}
int lineOffset = y*scanlineStride + x*pixelStride;
int srcOffset = 0;
for (int i = 0; i < h; i++) {
int pixelOffset = lineOffset;
for (int j = 0; j < w; j++) {
for (int k=0; k < numBands; k++) {
pixels[srcOffset++] =
data.getElem(bankIndices[k], pixelOffset + bandOffsets[k]);
}
pixelOffset += pixelStride;
}
lineOffset += scanlineStride;
}
return pixels;
| | public int | getSample(int x, int y, int b, java.awt.image.DataBuffer data)Returns as int the sample in a specified band for the pixel
located at (x,y).
An ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds.
// Bounds check for 'b' will be performed automatically
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
int sample = data.getElem(bankIndices[b],
y*scanlineStride + x*pixelStride +
bandOffsets[b]);
return sample;
| | public double | getSampleDouble(int x, int y, int b, java.awt.image.DataBuffer data)Returns the sample in a specified band
for a pixel located at (x,y) as a double.
An ArrayIndexOutOfBoundsException might be
thrown if the coordinates are not in bounds.
// Bounds check for 'b' will be performed automatically
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
double sample = data.getElemDouble(bankIndices[b],
y*scanlineStride + x*pixelStride +
bandOffsets[b]);
return sample;
| | public float | getSampleFloat(int x, int y, int b, java.awt.image.DataBuffer data)Returns the sample in a specified band
for the pixel located at (x,y) as a float.
An ArrayIndexOutOfBoundsException might be
thrown if the coordinates are not in bounds.
// Bounds check for 'b' will be performed automatically
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
float sample = data.getElemFloat(bankIndices[b],
y*scanlineStride + x*pixelStride +
bandOffsets[b]);
return sample;
| | public final int[] | getSampleSize()Returns the number of bits per sample for all bands.
int sampleSize[] = new int [numBands];
int sizeInBits = getSampleSize(0);
for (int i=0; i<numBands; i++)
sampleSize[i] = sizeInBits;
return sampleSize;
| | public final int | getSampleSize(int band)Returns the number of bits per sample for the specified band.
return DataBuffer.getDataTypeSize(dataType);
| | public int[] | getSamples(int x, int y, int w, int h, int b, int[] iArray, java.awt.image.DataBuffer data)Returns the samples in a specified band for the specified rectangle
of pixels in an int array, one sample per data array element.
An ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds.
// Bounds check for 'b' will be performed automatically
if ((x < 0) || (y < 0) || (x + w > width) || (y + h > height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
int samples[];
if (iArray != null) {
samples = iArray;
} else {
samples = new int [w*h];
}
int lineOffset = y*scanlineStride + x*pixelStride + bandOffsets[b];
int srcOffset = 0;
for (int i = 0; i < h; i++) {
int sampleOffset = lineOffset;
for (int j = 0; j < w; j++) {
samples[srcOffset++] = data.getElem(bankIndices[b],
sampleOffset);
sampleOffset += pixelStride;
}
lineOffset += scanlineStride;
}
return samples;
| | public final int | getScanlineStride()Returns the scanline stride of this ComponentSampleModel.
return scanlineStride;
| | public int | hashCode()
int hash = 0;
hash = width;
hash <<= 8;
hash ^= height;
hash <<= 8;
hash ^= numBands;
hash <<= 8;
hash ^= dataType;
hash <<= 8;
for (int i = 0; i < bandOffsets.length; i++) {
hash ^= bandOffsets[i];
hash <<= 8;
}
for (int i = 0; i < bankIndices.length; i++) {
hash ^= bankIndices[i];
hash <<= 8;
}
hash ^= numBands;
hash <<= 8;
hash ^= numBanks;
hash <<= 8;
hash ^= scanlineStride;
hash <<= 8;
hash ^= pixelStride;
return hash;
| | private static native void | initIDs()
| | int[] | orderBands(int[] orig, int step)Preserves band ordering with new step factor...
int map[] = new int[orig.length];
int ret[] = new int[orig.length];
for (int i=0; i<map.length; i++) map[i] = i;
for (int i = 0; i < ret.length; i++) {
int index = i;
for (int j = i+1; j < ret.length; j++) {
if (orig[map[index]] > orig[map[j]]) {
index = j;
}
}
ret[map[index]] = i*step;
map[index] = map[i];
}
return ret;
| | public void | setDataElements(int x, int y, java.lang.Object obj, java.awt.image.DataBuffer data)Sets the data for a single pixel in the specified
DataBuffer from a primitive array of type
TransferType. For a ComponentSampleModel,
this is the same as the data type, and samples are transferred
one per array element.
The following code illustrates transferring data for one pixel from
DataBuffer db1, whose storage layout is
described by ComponentSampleModel csm1,
to DataBuffer db2, whose storage layout
is described by ComponentSampleModel csm2.
The transfer is usually more efficient than using
getPixel and setPixel.
ComponentSampleModel csm1, csm2;
DataBufferInt db1, db2;
csm2.setDataElements(x, y, csm1.getDataElements(x, y, null, db1),
db2);
Using getDataElements and setDataElements
to transfer between two DataBuffer/SampleModel pairs
is legitimate if the SampleModel objects have
the same number of bands, corresponding bands have the same number of
bits per sample, and the TransferTypes are the same.
A ClassCastException is thrown if obj is not
a primitive array of type TransferType.
An ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds, or if obj is not large
enough to hold the pixel data.
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
int type = getTransferType();
int numDataElems = getNumDataElements();
int pixelOffset = y*scanlineStride + x*pixelStride;
switch(type) {
case DataBuffer.TYPE_BYTE:
byte[] barray = (byte[])obj;
for (int i=0; i<numDataElems; i++) {
data.setElem(bankIndices[i], pixelOffset + bandOffsets[i],
((int)barray[i])&0xff);
}
break;
case DataBuffer.TYPE_USHORT:
case DataBuffer.TYPE_SHORT:
short[] sarray = (short[])obj;
for (int i=0; i<numDataElems; i++) {
data.setElem(bankIndices[i], pixelOffset + bandOffsets[i],
((int)sarray[i])&0xffff);
}
break;
case DataBuffer.TYPE_INT:
int[] iarray = (int[])obj;
for (int i=0; i<numDataElems; i++) {
data.setElem(bankIndices[i],
pixelOffset + bandOffsets[i], iarray[i]);
}
break;
case DataBuffer.TYPE_FLOAT:
float[] farray = (float[])obj;
for (int i=0; i<numDataElems; i++) {
data.setElemFloat(bankIndices[i],
pixelOffset + bandOffsets[i], farray[i]);
}
break;
case DataBuffer.TYPE_DOUBLE:
double[] darray = (double[])obj;
for (int i=0; i<numDataElems; i++) {
data.setElemDouble(bankIndices[i],
pixelOffset + bandOffsets[i], darray[i]);
}
break;
}
| | public void | setPixel(int x, int y, int[] iArray, java.awt.image.DataBuffer data)Sets a pixel in the DataBuffer using an int array of
samples for input. An ArrayIndexOutOfBoundsException
might be thrown if the coordinates are
not in bounds.
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
int pixelOffset = y*scanlineStride + x*pixelStride;
for (int i=0; i<numBands; i++) {
data.setElem(bankIndices[i],
pixelOffset + bandOffsets[i],iArray[i]);
}
| | public void | setPixels(int x, int y, int w, int h, int[] iArray, java.awt.image.DataBuffer data)Sets all samples for a rectangle of pixels from an int array containing
one sample per array element.
An ArrayIndexOutOfBoundsException might be thrown if the
coordinates are not in bounds.
if ((x < 0) || (y < 0) || (x + w > width) || (y + h > height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
int lineOffset = y*scanlineStride + x*pixelStride;
int srcOffset = 0;
for (int i = 0; i < h; i++) {
int pixelOffset = lineOffset;
for (int j = 0; j < w; j++) {
for (int k=0; k < numBands; k++) {
data.setElem(bankIndices[k], pixelOffset + bandOffsets[k],
iArray[srcOffset++]);
}
pixelOffset += pixelStride;
}
lineOffset += scanlineStride;
}
| | public void | setSample(int x, int y, int b, int s, java.awt.image.DataBuffer data)Sets a sample in the specified band for the pixel located at (x,y)
in the DataBuffer using an int for input.
An ArrayIndexOutOfBoundsException might be thrown if the
coordinates are not in bounds.
// Bounds check for 'b' will be performed automatically
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
data.setElem(bankIndices[b],
y*scanlineStride + x*pixelStride + bandOffsets[b], s);
| | public void | setSample(int x, int y, int b, float s, java.awt.image.DataBuffer data)Sets a sample in the specified band for the pixel located at (x,y)
in the DataBuffer using a float for input.
An ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds.
// Bounds check for 'b' will be performed automatically
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
data.setElemFloat(bankIndices[b],
y*scanlineStride + x*pixelStride + bandOffsets[b],
s);
| | public void | setSample(int x, int y, int b, double s, java.awt.image.DataBuffer data)Sets a sample in the specified band for the pixel located at (x,y)
in the DataBuffer using a double for input.
An ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds.
// Bounds check for 'b' will be performed automatically
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
data.setElemDouble(bankIndices[b],
y*scanlineStride + x*pixelStride + bandOffsets[b],
s);
| | public void | setSamples(int x, int y, int w, int h, int b, int[] iArray, java.awt.image.DataBuffer data)Sets the samples in the specified band for the specified rectangle
of pixels from an int array containing one sample per data array element.
An ArrayIndexOutOfBoundsException might be thrown if the
coordinates are not in bounds.
// Bounds check for 'b' will be performed automatically
if ((x < 0) || (y < 0) || (x + w > width) || (y + h > height)) {
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
int lineOffset = y*scanlineStride + x*pixelStride + bandOffsets[b];
int srcOffset = 0;
for (int i = 0; i < h; i++) {
int sampleOffset = lineOffset;
for (int j = 0; j < w; j++) {
data.setElem(bankIndices[b], sampleOffset, iArray[srcOffset++]);
sampleOffset += pixelStride;
}
lineOffset += scanlineStride;
}
|
|
