/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* This class defines a Raster with pixels consisting of one or more 32-bit
* data elements stored in close proximity to each other in a integer array.
* The bit precision per data element is that
* of the data type (that is, the bit precision for this raster is 32).
* There is only one pixel stride and one scanline stride for all
* bands. For a given pixel, all samples fit in N data elements and these
* N data elements hold samples for only one pixel. This type of Raster
* can be used with a PackedColorModel.
* <p>
* For example, if there is only one data element per pixel, a
* SinglePixelPackedSampleModel can be used to represent multiple
* bands with a PackedColorModel (including a DirectColorModel) for
* color interpretation.
*
*/
/** private band offset for use by native code */
protected int bandOffset;
/** Data offsets for each band of image data. */
protected int[] dataOffsets;
/** Scanline stride of the image data contained in this Raster. */
protected int scanlineStride;
/** Pixel stride of the image data contained in this Raster. */
protected int pixelStride;
/** The image data array. */
protected int[] data;
/** The number of data elements required to store a pixel. */
protected int numDataElems;
int type;
/** A cached copy of minX + width for use in bounds checks. */
private int maxX;
/** A cached copy of minY + height for use in bounds checks. */
private int maxY;
static private native void initIDs();
static {
/* ensure that the necessary native libraries are loaded */
initIDs();
}
/**
* Constructs a IntegerComponentRaster with the given SampleModel.
* The Raster's upper left corner is origin and it is the same
* size as the SampleModel. A DataBuffer large enough to describe the
* Raster is automatically created. SampleModel must be of type
* SinglePixelPackedSampleModel.
* @param sampleModel The SampleModel that specifies the layout.
* @param origin The Point that specified the origin.
*/
this(sampleModel,
origin.y,
sampleModel.getHeight()),
null);
}
/**
* Constructs a IntegerComponentRaster with the given SampleModel
* and DataBuffer. The Raster's upper left corner is origin and
* it is the same sizes the SampleModel. The DataBuffer is not
* initialized and must be a DataBufferInt compatible with SampleModel.
* SampleModel must be of type SinglePixelPackedSampleModel.
* @param sampleModel The SampleModel that specifies the layout.
* @param dataBuffer The DataBufferInt that contains the image data.
* @param origin The Point that specifies the origin.
*/
this(sampleModel,
origin.y,
sampleModel.getHeight()),
null);
}
/**
* Constructs a IntegerComponentRaster with the given SampleModel,
* DataBuffer, and parent. DataBuffer must be a DataBufferInt and
* SampleModel must be of type SinglePixelPackedSampleModel.
* When translated into the base Raster's
* coordinate system, aRegion must be contained by the base Raster.
* Origin is the coodinate in the new Raster's coordinate system of
* the origin of the base Raster. (The base Raster is the Raster's
* ancestor which has no parent.)
*
* Note that this constructor should generally be called by other
* constructors or create methods, it should not be used directly.
* @param sampleModel The SampleModel that specifies the layout.
* @param dataBuffer The DataBufferInt that contains the image data.
* @param aRegion The Rectangle that specifies the image area.
* @param origin The Point that specifies the origin.
* @param parent The parent (if any) of this raster.
*/
if (!(dataBuffer instanceof DataBufferInt)) {
throw new RasterFormatException("IntegerComponentRasters must have" +
"integer DataBuffers");
}
throw new
RasterFormatException("DataBuffer for IntegerComponentRasters"+
" must only have 1 bank.");
}
if (sampleModel instanceof SinglePixelPackedSampleModel) {
boolean notByteBoundary = false;
notByteBoundary = true;
}
}
this.type = (notByteBoundary
this.pixelStride = 1;
this.dataOffsets = new int[1];
} else {
throw new RasterFormatException("IntegerComponentRasters must have"+
" SinglePixelPackedSampleModel");
}
verify();
}
/**
* Returns a copy of the data offsets array. For each band the data offset
* is the index into the band's data array, of the first sample of the
* band.
*/
public int[] getDataOffsets() {
return (int[]) dataOffsets.clone();
}
/**
* Returns data offset for the specified band. The data offset
* is the index into the data array in which the first sample
* of the first scanline is stored.
*/
return dataOffsets[band];
}
/**
* Returns the scanline stride -- the number of data array elements between
* a given sample and the sample in the same column of the next row.
*/
public int getScanlineStride() {
return scanlineStride;
}
/**
* Returns pixel stride -- the number of data array elements between two
* samples for the same band on the same scanline.
*/
public int getPixelStride() {
return pixelStride;
}
/**
* Returns a reference to the data array.
*/
public int[] getDataStorage() {
return data;
}
/**
* Returns the data elements for all bands at the specified
* location.
* An ArrayIndexOutOfBounds exception will be thrown at runtime
* if the pixel coordinate is out of bounds.
* A ClassCastException will be thrown if the input object is non null
* and references anything other than an array of transferType.
* @param x The X coordinate of the pixel location.
* @param y The Y coordinate of the pixel location.
* @param outData An object reference to an array of type defined by
* getTransferType() and length getNumDataElements().
* If null an array of appropriate type and size will be
* allocated.
* @return An object reference to an array of type defined by
* getTransferType() with the request pixel data.
*/
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
int outData[];
outData = new int[numDataElements];
} else {
}
(x-minX)*pixelStride;
}
return outData;
}
/**
* Returns an array of data elements from the specified rectangular
* region.
* An ArrayIndexOutOfBounds exception will be thrown at runtime
* if the pixel coordinates are out of bounds.
* A ClassCastException will be thrown if the input object is non null
* and references anything other than an array of transferType.
<pre>
* int[] bandData = (int[])raster.getDataElements(x, y, w, h, null);
* int numDataElements = raster.getNumDataElements();
* int[] pixel = new int[numDataElements];
* // To find a data element at location (x2, y2)
* System.arraycopy(bandData, ((y2-y)*w + (x2-x))*numDataElements,
* pixel, 0, numDataElements);
* </pre>
* @param x The X coordinate of the upper left pixel location.
* @param y The Y coordinate of the upper left pixel location.
* @param width Width of the pixel rectangle.
* @param height Height of the pixel rectangle.
* @param outData An object reference to an array of type defined by
* getTransferType() and length w*h*getNumDataElements().
* If null an array of appropriate type and size will be
* allocated.
* @return An object reference to an array of type defined by
* getTransferType() with the request pixel data.
*/
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
int outData[];
if (obj instanceof int[]) {
} else {
outData = new int[numDataElements*w*h];
}
(x-minX)*pixelStride;
int xoff;
int off = 0;
int xstart;
int ystart;
for (int c = 0; c < numDataElements; c++) {
}
}
}
return outData;
}
/**
* Stores the data elements for all bands at the specified location.
* An ArrayIndexOutOfBounds exception will be thrown at runtime
* if the pixel coordinate is out of bounds.
* A ClassCastException will be thrown if the input object is non null
* and references anything other than an array of transferType.
* @param x The X coordinate of the pixel location.
* @param y The Y coordinate of the pixel location.
* @param inData An object reference to an array of type defined by
* getTransferType() and length getNumDataElements()
* containing the pixel data to place at x,y.
*/
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
(x-minX)*pixelStride;
for (int i = 0; i < numDataElements; i++) {
}
markDirty();
}
/**
* Stores the Raster data at the specified location.
* The transferType of the inputRaster must match this raster.
* An ArrayIndexOutOfBoundsException will be thrown at runtime
* if the pixel coordinates are out of bounds.
* @param x The X coordinate of the pixel location.
* @param y The Y coordinate of the pixel location.
* @param inRaster Raster of data to place at x,y location.
*/
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
}
/**
* Stores the Raster data at the specified location.
* @param dstX The absolute X coordinate of the destination pixel
* that will receive a copy of the upper-left pixel of the
* inRaster
* @param dstY The absolute Y coordinate of the destination pixel
* that will receive a copy of the upper-left pixel of the
* inRaster
* @param width The number of pixels to store horizontally
* @param height The number of pixels to store vertically
* @param inRaster Raster of data to place at x,y location.
*/
// Assume bounds checking has been performed previously
return;
}
// Write inRaster (minX, minY) to (dstX, dstY)
if (inRaster instanceof IntegerComponentRaster &&
throw new ArrayIndexOutOfBoundsException("Number of bands"+
" does not match");
}
// Extract the raster parameters
// Fastest case. We can copy scanlines
width *= pixelStride;
// Loop through all of the scanlines and copy the data
}
markDirty();
return;
}
}
}
}
/**
* Stores an array of data elements into the specified rectangular
* region.
* An ArrayIndexOutOfBounds exception will be thrown at runtime
* if the pixel coordinates are out of bounds.
* A ClassCastException will be thrown if the input object is non null
* and references anything other than an array of transferType.
* The data elements in the
* data array are assumed to be packed. That is, a data element
* for the nth band at location (x2, y2) would be found at:
* <pre>
* inData[((y2-y)*w + (x2-x))*numDataElements + n]
* </pre>
* @param x The X coordinate of the upper left pixel location.
* @param y The Y coordinate of the upper left pixel location.
* @param w Width of the pixel rectangle.
* @param h Height of the pixel rectangle.
* @param inData An object reference to an array of type defined by
* getTransferType() and length w*h*getNumDataElements()
* containing the pixel data to place between x,y and
* x+h, y+h.
*/
throw new ArrayIndexOutOfBoundsException
("Coordinate out of bounds!");
}
(x-minX)*pixelStride;
int xoff;
int off = 0;
int xstart;
int ystart;
for (int c = 0; c < numDataElements; c++) {
}
}
}
markDirty();
}
/**
* Creates a subraster given a region of the raster. The x and y
* coordinates specify the horizontal and vertical offsets
* from the upper-left corner of this raster to the upper-left corner
* of the subraster. A subset of the bands of the parent Raster may
* be specified. If this is null, then all the bands are present in the
* subRaster. A translation to the subRaster may also be specified.
* Note that the subraster will reference the same
* DataBuffer as the parent raster, but using different offsets.
* @param x X offset.
* @param y Y offset.
* @param width Width (in pixels) of the subraster.
* @param height Height (in pixels) of the subraster.
* @param x0 Translated X origin of the subraster.
* @param y0 Translated Y origin of the subraster.
* @param bandList Array of band indices.
* @exception RasterFormatException
* if the specified bounding box is outside of the parent raster.
*/
int bandList[]) {
if (x < this.minX) {
throw new RasterFormatException("x lies outside raster");
}
if (y < this.minY) {
throw new RasterFormatException("y lies outside raster");
}
throw new RasterFormatException("(x + width) is outside raster");
}
throw new RasterFormatException("(y + height) is outside raster");
}
else
sm = sampleModel;
return new IntegerComponentRaster(sm,
this);
}
/**
* Creates a subraster given a region of the raster. The x and y
* coordinates specify the horizontal and vertical offsets
* from the upper-left corner of this raster to the upper-left corner
* of the subraster. A subset of the bands of the parent raster may
* be specified. If this is null, then all the bands are present in the
* subRaster. Note that the subraster will reference the same
* DataBuffer as the parent raster, but using different offsets.
* @param x X offset.
* @param y Y offset.
* @param width Width (in pixels) of the subraster.
* @param height Height (in pixels) of the subraster.
* @param x0 Translated X origin of the subRaster.
* @param y0 Translated Y origin of the subRaster.
* @param bandList Array of band indices.
* @exception RasterFormatException
* if the specified bounding box is outside of the parent raster.
*/
int bandList[]) {
}
/**
* Creates a raster with the same band layout but using a different
* width and height, and with new zeroed data arrays.
*/
if (w <= 0 || h <=0) {
throw new RasterFormatException("negative "+
((w <= 0) ? "width" : "height"));
}
}
/**
* Creates a raster with the same data layout and the same
* width and height, and with new zeroed data arrays. If
* the raster is a subraster, this will call
* createCompatibleRaster(width, height).
*/
}
/**
* Verify that the layout parameters are consistent with the data.
*
* The method verifies whether scanline stride and pixel stride do not
* cause an integer overflow during calculation of a position of the pixel
* in data buffer. It also verifies whether the data buffer has enough data
* to correspond the raster layout attributes.
*
* @throws RasterFormatException if an integer overflow is detected,
* or if data buffer has not enough capacity.
*/
protected final void verify() {
/* Need to re-verify the dimensions since a sample model may be
* specified to the constructor
*/
{
throw new RasterFormatException("Invalid raster dimension");
}
") must be >= 0");
}
// we can be sure that width and height are greater than 0
if (scanlineStride < 0 ||
{
// integer overflow
throw new RasterFormatException("Incorrect scanline stride: "
+ scanlineStride);
}
if (pixelStride < 0 ||
{
// integer overflow
throw new RasterFormatException("Incorrect pixel stride: "
+ pixelStride);
}
// integer overflow
throw new RasterFormatException("Incorrect raster attributes");
}
int index;
int maxIndex = 0;
for (int i = 0; i < numDataElements; i++) {
throw new RasterFormatException("Incorrect band offset: "
+ dataOffsets[i]);
}
}
}
throw new RasterFormatException("Data array too small (should be > "
+ maxIndex + " )");
}
}
+" height = " + height
+" #Bands = " + numBands
+" #DataElements "+numDataElements
+" xOff = "+sampleModelTranslateX
+" yOff = "+sampleModelTranslateY
}
// /**
// * For debugging... prints a region of a one-band IntegerComponentRaster
// */
// public void print(int x, int y, int w, int h) {
// // REMIND: Only works for 1 band!
// System.out.println(this);
// int offset = dataOffsets[0] + y*scanlineStride + x*pixelStride;
// int off;
// for (int yoff=0; yoff < h; yoff++, offset += scanlineStride) {
// off = offset;
// System.out.print("Line "+(sampleModelTranslateY+y+yoff)+": ");
// for (int xoff = 0; xoff < w; xoff++, off+= pixelStride) {
// System.out.print(Integer.toHexString(data[off])+" ");
// }
// System.out.println("");
// }
// }
}