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JRE 8 rt.jar - java.* Package Source Code
JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries. JRE (Java Runtime) 8 is the runtime environment included in JDK 8. JRE 8 rt.jar libraries are divided into 6 packages:
com.* - Internal Oracle and Sun Microsystems libraries java.* - Standard Java API libraries. javax.* - Extended Java API libraries. jdk.* - JDK supporting libraries. org.* - Third party libraries. sun.* - Old libraries developed by Sun Microsystems.
JAR File Information:
Directory of C:\fyicenter\jdk-1.8.0_191\jre\lib 63,596,151 rt.jar
Here is the list of Java classes of the java.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.
✍: FYIcenter
⏎ java/awt/image/MultiPixelPackedSampleModel.java
/* * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ /* **************************************************************** ****************************************************************** ****************************************************************** *** COPYRIGHT (c) Eastman Kodak Company, 1997 *** As an unpublished work pursuant to Title 17 of the United *** States Code. All rights reserved. ****************************************************************** ****************************************************************** ******************************************************************/ package java.awt.image; /** * The <code>MultiPixelPackedSampleModel</code> class represents * one-banded images and can pack multiple one-sample * pixels into one data element. Pixels are not allowed to span data elements. * The data type can be DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, * or DataBuffer.TYPE_INT. Each pixel must be a power of 2 number of bits * and a power of 2 number of pixels must fit exactly in one data element. * Pixel bit stride is equal to the number of bits per pixel. Scanline * stride is in data elements and the last several data elements might be * padded with unused pixels. Data bit offset is the offset in bits from * the beginning of the {@link DataBuffer} to the first pixel and must be * a multiple of pixel bit stride. * <p> * The following code illustrates extracting the bits for pixel * <code>x, y</code> from <code>DataBuffer</code> <code>data</code> * and storing the pixel data in data elements of type * <code>dataType</code>: * <pre>{@code * int dataElementSize = DataBuffer.getDataTypeSize(dataType); * int bitnum = dataBitOffset + x*pixelBitStride; * int element = data.getElem(y*scanlineStride + bitnum/dataElementSize); * int shift = dataElementSize - (bitnum & (dataElementSize-1)) * - pixelBitStride; * int pixel = (element >> shift) & ((1 << pixelBitStride) - 1); * }</pre> */ public class MultiPixelPackedSampleModel extends SampleModel { /** The number of bits from one pixel to the next. */ int pixelBitStride; /** Bitmask that extracts the rightmost pixel of a data element. */ int bitMask; /** * The number of pixels that fit in a data element. Also used * as the number of bits per pixel. */ int pixelsPerDataElement; /** The size of a data element in bits. */ int dataElementSize; /** The bit offset into the data array where the first pixel begins. */ int dataBitOffset; /** ScanlineStride of the data buffer described in data array elements. */ int scanlineStride; /** * Constructs a <code>MultiPixelPackedSampleModel</code> with the * specified data type, width, height and number of bits per pixel. * @param dataType the data type for storing samples * @param w the width, in pixels, of the region of * image data described * @param h the height, in pixels, of the region of * image data described * @param numberOfBits the number of bits per pixel * @throws IllegalArgumentException if <code>dataType</code> is not * either <code>DataBuffer.TYPE_BYTE</code>, * <code>DataBuffer.TYPE_USHORT</code>, or * <code>DataBuffer.TYPE_INT</code> */ public MultiPixelPackedSampleModel(int dataType, int w, int h, int numberOfBits) { this(dataType,w,h, numberOfBits, (w*numberOfBits+DataBuffer.getDataTypeSize(dataType)-1)/ DataBuffer.getDataTypeSize(dataType), 0); if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT && dataType != DataBuffer.TYPE_INT) { throw new IllegalArgumentException("Unsupported data type "+ dataType); } } /** * Constructs a <code>MultiPixelPackedSampleModel</code> with * specified data type, width, height, number of bits per pixel, * scanline stride and data bit offset. * @param dataType the data type for storing samples * @param w the width, in pixels, of the region of * image data described * @param h the height, in pixels, of the region of * image data described * @param numberOfBits the number of bits per pixel * @param scanlineStride the line stride of the image data * @param dataBitOffset the data bit offset for the region of image * data described * @exception RasterFormatException if the number of bits per pixel * is not a power of 2 or if a power of 2 number of * pixels do not fit in one data element. * @throws IllegalArgumentException if <code>w</code> or * <code>h</code> is not greater than 0 * @throws IllegalArgumentException if <code>dataType</code> is not * either <code>DataBuffer.TYPE_BYTE</code>, * <code>DataBuffer.TYPE_USHORT</code>, or * <code>DataBuffer.TYPE_INT</code> */ public MultiPixelPackedSampleModel(int dataType, int w, int h, int numberOfBits, int scanlineStride, int dataBitOffset) { super(dataType, w, h, 1); if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT && dataType != DataBuffer.TYPE_INT) { throw new IllegalArgumentException("Unsupported data type "+ dataType); } this.dataType = dataType; this.pixelBitStride = numberOfBits; this.scanlineStride = scanlineStride; this.dataBitOffset = dataBitOffset; this.dataElementSize = DataBuffer.getDataTypeSize(dataType); this.pixelsPerDataElement = dataElementSize/numberOfBits; if (pixelsPerDataElement*numberOfBits != dataElementSize) { throw new RasterFormatException("MultiPixelPackedSampleModel " + "does not allow pixels to " + "span data element boundaries"); } this.bitMask = (1 << numberOfBits) - 1; } /** * Creates a new <code>MultiPixelPackedSampleModel</code> with the * specified width and height. The new * <code>MultiPixelPackedSampleModel</code> has the * same storage data type and number of bits per pixel as this * <code>MultiPixelPackedSampleModel</code>. * @param w the specified width * @param h the specified height * @return a {@link SampleModel} with the specified width and height * and with the same storage data type and number of bits per pixel * as this <code>MultiPixelPackedSampleModel</code>. * @throws IllegalArgumentException if <code>w</code> or * <code>h</code> is not greater than 0 */ public SampleModel createCompatibleSampleModel(int w, int h) { SampleModel sampleModel = new MultiPixelPackedSampleModel(dataType, w, h, pixelBitStride); return sampleModel; } /** * Creates a <code>DataBuffer</code> that corresponds to this * <code>MultiPixelPackedSampleModel</code>. The * <code>DataBuffer</code> object's data type and size * is consistent with this <code>MultiPixelPackedSampleModel</code>. * The <code>DataBuffer</code> has a single bank. * @return a <code>DataBuffer</code> with the same data type and * size as this <code>MultiPixelPackedSampleModel</code>. */ public DataBuffer createDataBuffer() { DataBuffer dataBuffer = null; int size = (int)scanlineStride*height; switch (dataType) { case DataBuffer.TYPE_BYTE: dataBuffer = new DataBufferByte(size+(dataBitOffset+7)/8); break; case DataBuffer.TYPE_USHORT: dataBuffer = new DataBufferUShort(size+(dataBitOffset+15)/16); break; case DataBuffer.TYPE_INT: dataBuffer = new DataBufferInt(size+(dataBitOffset+31)/32); break; } return dataBuffer; } /** * Returns the number of data elements needed to transfer one pixel * via the {@link #getDataElements} and {@link #setDataElements} * methods. For a <code>MultiPixelPackedSampleModel</code>, this is * one. * @return the number of data elements. */ public int getNumDataElements() { return 1; } /** * Returns the number of bits per sample for all bands. * @return the number of bits per sample. */ public int[] getSampleSize() { int sampleSize[] = {pixelBitStride}; return sampleSize; } /** * Returns the number of bits per sample for the specified band. * @param band the specified band * @return the number of bits per sample for the specified band. */ public int getSampleSize(int band) { return pixelBitStride; } /** * Returns the offset of pixel (x, y) in data array elements. * @param x the X coordinate of the specified pixel * @param y the Y coordinate of the specified pixel * @return the offset of the specified pixel. */ public int getOffset(int x, int y) { int offset = y * scanlineStride; offset += (x*pixelBitStride+dataBitOffset)/dataElementSize; return offset; } /** * Returns the offset, in bits, into the data element in which it is * stored for the <code>x</code>th pixel of a scanline. * This offset is the same for all scanlines. * @param x the specified pixel * @return the bit offset of the specified pixel. */ public int getBitOffset(int x){ return (x*pixelBitStride+dataBitOffset)%dataElementSize; } /** * Returns the scanline stride. * @return the scanline stride of this * <code>MultiPixelPackedSampleModel</code>. */ public int getScanlineStride() { return scanlineStride; } /** * Returns the pixel bit stride in bits. This value is the same as * the number of bits per pixel. * @return the <code>pixelBitStride</code> of this * <code>MultiPixelPackedSampleModel</code>. */ public int getPixelBitStride() { return pixelBitStride; } /** * Returns the data bit offset in bits. * @return the <code>dataBitOffset</code> of this * <code>MultiPixelPackedSampleModel</code>. */ public int getDataBitOffset() { return dataBitOffset; } /** * Returns the TransferType used to transfer pixels by way of the * <code>getDataElements</code> and <code>setDataElements</code> * methods. The TransferType might or might not be the same as the * storage DataType. The TransferType is one of * DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, * or DataBuffer.TYPE_INT. * @return the transfertype. */ public int getTransferType() { if (pixelBitStride > 16) return DataBuffer.TYPE_INT; else if (pixelBitStride > 8) return DataBuffer.TYPE_USHORT; else return DataBuffer.TYPE_BYTE; } /** * Creates a new <code>MultiPixelPackedSampleModel</code> with a * subset of the bands of this * <code>MultiPixelPackedSampleModel</code>. Since a * <code>MultiPixelPackedSampleModel</code> only has one band, the * bands argument must have a length of one and indicate the zeroth * band. * @param bands the specified bands * @return a new <code>SampleModel</code> with a subset of bands of * this <code>MultiPixelPackedSampleModel</code>. * @exception RasterFormatException if the number of bands requested * is not one. * @throws IllegalArgumentException if <code>w</code> or * <code>h</code> is not greater than 0 */ public SampleModel createSubsetSampleModel(int bands[]) { if (bands != null) { if (bands.length != 1) throw new RasterFormatException("MultiPixelPackedSampleModel has " + "only one band."); } SampleModel sm = createCompatibleSampleModel(width, height); return sm; } /** * Returns as <code>int</code> the sample in a specified band for the * pixel located at (x, y). An * <code>ArrayIndexOutOfBoundsException</code> is thrown if the * coordinates are not in bounds. * @param x the X coordinate of the specified pixel * @param y the Y coordinate of the specified pixel * @param b the band to return, which is assumed to be 0 * @param data the <code>DataBuffer</code> containing the image * data * @return the specified band containing the sample of the specified * pixel. * @exception ArrayIndexOutOfBoundsException if the specified * coordinates are not in bounds. * @see #setSample(int, int, int, int, DataBuffer) */ public int getSample(int x, int y, int b, DataBuffer data) { // 'b' must be 0 if ((x < 0) || (y < 0) || (x >= width) || (y >= height) || (b != 0)) { throw new ArrayIndexOutOfBoundsException ("Coordinate out of bounds!"); } int bitnum = dataBitOffset + x*pixelBitStride; int element = data.getElem(y*scanlineStride + bitnum/dataElementSize); int shift = dataElementSize - (bitnum & (dataElementSize-1)) - pixelBitStride; return (element >> shift) & bitMask; } /** * Sets a sample in the specified band for the pixel located at * (x, y) in the <code>DataBuffer</code> using an * <code>int</code> for input. * An <code>ArrayIndexOutOfBoundsException</code> is thrown if the * coordinates are not in bounds. * @param x the X coordinate of the specified pixel * @param y the Y coordinate of the specified pixel * @param b the band to return, which is assumed to be 0 * @param s the input sample as an <code>int</code> * @param data the <code>DataBuffer</code> where image data is stored * @exception ArrayIndexOutOfBoundsException if the coordinates are * not in bounds. * @see #getSample(int, int, int, DataBuffer) */ public void setSample(int x, int y, int b, int s, DataBuffer data) { // 'b' must be 0 if ((x < 0) || (y < 0) || (x >= width) || (y >= height) || (b != 0)) { throw new ArrayIndexOutOfBoundsException ("Coordinate out of bounds!"); } int bitnum = dataBitOffset + x * pixelBitStride; int index = y * scanlineStride + (bitnum / dataElementSize); int shift = dataElementSize - (bitnum & (dataElementSize-1)) - pixelBitStride; int element = data.getElem(index); element &= ~(bitMask << shift); element |= (s & bitMask) << shift; data.setElem(index,element); } /** * Returns data for a single pixel in a primitive array of type * TransferType. For a <code>MultiPixelPackedSampleModel</code>, * the array has one element, and the type is the smallest of * DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, or DataBuffer.TYPE_INT * that can hold a single pixel. Generally, <code>obj</code> * should be passed in as <code>null</code>, so that the * <code>Object</code> is created automatically and is the * correct primitive data type. * <p> * The following code illustrates transferring data for one pixel from * <code>DataBuffer</code> <code>db1</code>, whose storage layout is * described by <code>MultiPixelPackedSampleModel</code> * <code>mppsm1</code>, to <code>DataBuffer</code> <code>db2</code>, * whose storage layout is described by * <code>MultiPixelPackedSampleModel</code> <code>mppsm2</code>. * The transfer is generally more efficient than using * <code>getPixel</code> or <code>setPixel</code>. * <pre> * MultiPixelPackedSampleModel mppsm1, mppsm2; * DataBufferInt db1, db2; * mppsm2.setDataElements(x, y, mppsm1.getDataElements(x, y, null, * db1), db2); * </pre> * Using <code>getDataElements</code> or <code>setDataElements</code> * to transfer between two <code>DataBuffer/SampleModel</code> pairs * is legitimate if the <code>SampleModels</code> have the same number * of bands, corresponding bands have the same number of * bits per sample, and the TransferTypes are the same. * <p> * If <code>obj</code> is not <code>null</code>, it should be a * primitive array of type TransferType. Otherwise, a * <code>ClassCastException</code> is thrown. An * <code>ArrayIndexOutOfBoundsException</code> is thrown if the * coordinates are not in bounds, or if <code>obj</code> is not * <code>null</code> and is not large enough to hold the pixel data. * @param x the X coordinate of the specified pixel * @param y the Y coordinate of the specified pixel * @param obj a primitive array in which to return the pixel data or * <code>null</code>. * @param data the <code>DataBuffer</code> containing the image data. * @return an <code>Object</code> containing data for the specified * pixel. * @exception ClassCastException if <code>obj</code> is not a * primitive array of type TransferType or is not <code>null</code> * @exception ArrayIndexOutOfBoundsException if the coordinates are * not in bounds, or if <code>obj</code> is not <code>null</code> or * not large enough to hold the pixel data * @see #setDataElements(int, int, Object, DataBuffer) */ public Object getDataElements(int x, int y, Object obj, DataBuffer data) { if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { throw new ArrayIndexOutOfBoundsException ("Coordinate out of bounds!"); } int type = getTransferType(); int bitnum = dataBitOffset + x*pixelBitStride; int shift = dataElementSize - (bitnum & (dataElementSize-1)) - pixelBitStride; int element = 0; switch(type) { case DataBuffer.TYPE_BYTE: byte[] bdata; if (obj == null) bdata = new byte[1]; else bdata = (byte[])obj; element = data.getElem(y*scanlineStride + bitnum/dataElementSize); bdata[0] = (byte)((element >> shift) & bitMask); obj = (Object)bdata; break; case DataBuffer.TYPE_USHORT: short[] sdata; if (obj == null) sdata = new short[1]; else sdata = (short[])obj; element = data.getElem(y*scanlineStride + bitnum/dataElementSize); sdata[0] = (short)((element >> shift) & bitMask); obj = (Object)sdata; break; case DataBuffer.TYPE_INT: int[] idata; if (obj == null) idata = new int[1]; else idata = (int[])obj; element = data.getElem(y*scanlineStride + bitnum/dataElementSize); idata[0] = (element >> shift) & bitMask; obj = (Object)idata; break; } return obj; } /** * Returns the specified single band pixel in the first element * of an <code>int</code> array. * <code>ArrayIndexOutOfBoundsException</code> is thrown if the * coordinates are not in bounds. * @param x the X coordinate of the specified pixel * @param y the Y coordinate of the specified pixel * @param iArray the array containing the pixel to be returned or * <code>null</code> * @param data the <code>DataBuffer</code> where image data is stored * @return an array containing the specified pixel. * @exception ArrayIndexOutOfBoundsException if the coordinates * are not in bounds * @see #setPixel(int, int, int[], DataBuffer) */ public int[] getPixel(int x, int y, int iArray[], DataBuffer data) { 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 bitnum = dataBitOffset + x*pixelBitStride; int element = data.getElem(y*scanlineStride + bitnum/dataElementSize); int shift = dataElementSize - (bitnum & (dataElementSize-1)) - pixelBitStride; pixels[0] = (element >> shift) & bitMask; return pixels; } /** * Sets the data for a single pixel in the specified * <code>DataBuffer</code> from a primitive array of type * TransferType. For a <code>MultiPixelPackedSampleModel</code>, * only the first element of the array holds valid data, * and the type must be the smallest of * DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, or DataBuffer.TYPE_INT * that can hold a single pixel. * <p> * The following code illustrates transferring data for one pixel from * <code>DataBuffer</code> <code>db1</code>, whose storage layout is * described by <code>MultiPixelPackedSampleModel</code> * <code>mppsm1</code>, to <code>DataBuffer</code> <code>db2</code>, * whose storage layout is described by * <code>MultiPixelPackedSampleModel</code> <code>mppsm2</code>. * The transfer is generally more efficient than using * <code>getPixel</code> or <code>setPixel</code>. * <pre> * MultiPixelPackedSampleModel mppsm1, mppsm2; * DataBufferInt db1, db2; * mppsm2.setDataElements(x, y, mppsm1.getDataElements(x, y, null, * db1), db2); * </pre> * Using <code>getDataElements</code> or <code>setDataElements</code> to * transfer between two <code>DataBuffer/SampleModel</code> pairs is * legitimate if the <code>SampleModel</code> objects have * the same number of bands, corresponding bands have the same number of * bits per sample, and the TransferTypes are the same. * <p> * <code>obj</code> must be a primitive array of type TransferType. * Otherwise, a <code>ClassCastException</code> is thrown. An * <code>ArrayIndexOutOfBoundsException</code> is thrown if the * coordinates are not in bounds, or if <code>obj</code> is not large * enough to hold the pixel data. * @param x the X coordinate of the pixel location * @param y the Y coordinate of the pixel location * @param obj a primitive array containing pixel data * @param data the <code>DataBuffer</code> containing the image data * @see #getDataElements(int, int, Object, DataBuffer) */ public void setDataElements(int x, int y, Object obj, DataBuffer data) { if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { throw new ArrayIndexOutOfBoundsException ("Coordinate out of bounds!"); } int type = getTransferType(); int bitnum = dataBitOffset + x * pixelBitStride; int index = y * scanlineStride + (bitnum / dataElementSize); int shift = dataElementSize - (bitnum & (dataElementSize-1)) - pixelBitStride; int element = data.getElem(index); element &= ~(bitMask << shift); switch(type) { case DataBuffer.TYPE_BYTE: byte[] barray = (byte[])obj; element |= ( ((int)(barray[0])&0xff) & bitMask) << shift; data.setElem(index, element); break; case DataBuffer.TYPE_USHORT: short[] sarray = (short[])obj; element |= ( ((int)(sarray[0])&0xffff) & bitMask) << shift; data.setElem(index, element); break; case DataBuffer.TYPE_INT: int[] iarray = (int[])obj; element |= (iarray[0] & bitMask) << shift; data.setElem(index, element); break; } } /** * Sets a pixel in the <code>DataBuffer</code> using an * <code>int</code> array for input. * <code>ArrayIndexOutOfBoundsException</code> is thrown if * the coordinates are not in bounds. * @param x the X coordinate of the pixel location * @param y the Y coordinate of the pixel location * @param iArray the input pixel in an <code>int</code> array * @param data the <code>DataBuffer</code> containing the image data * @see #getPixel(int, int, int[], DataBuffer) */ public void setPixel(int x, int y, int[] iArray, DataBuffer data) { if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { throw new ArrayIndexOutOfBoundsException ("Coordinate out of bounds!"); } int bitnum = dataBitOffset + x * pixelBitStride; int index = y * scanlineStride + (bitnum / dataElementSize); int shift = dataElementSize - (bitnum & (dataElementSize-1)) - pixelBitStride; int element = data.getElem(index); element &= ~(bitMask << shift); element |= (iArray[0] & bitMask) << shift; data.setElem(index,element); } public boolean equals(Object o) { if ((o == null) || !(o instanceof MultiPixelPackedSampleModel)) { return false; } MultiPixelPackedSampleModel that = (MultiPixelPackedSampleModel)o; return this.width == that.width && this.height == that.height && this.numBands == that.numBands && this.dataType == that.dataType && this.pixelBitStride == that.pixelBitStride && this.bitMask == that.bitMask && this.pixelsPerDataElement == that.pixelsPerDataElement && this.dataElementSize == that.dataElementSize && this.dataBitOffset == that.dataBitOffset && this.scanlineStride == that.scanlineStride; } // If we implement equals() we must also implement hashCode public int hashCode() { int hash = 0; hash = width; hash <<= 8; hash ^= height; hash <<= 8; hash ^= numBands; hash <<= 8; hash ^= dataType; hash <<= 8; hash ^= pixelBitStride; hash <<= 8; hash ^= bitMask; hash <<= 8; hash ^= pixelsPerDataElement; hash <<= 8; hash ^= dataElementSize; hash <<= 8; hash ^= dataBitOffset; hash <<= 8; hash ^= scanlineStride; return hash; } }
⏎ java/awt/image/MultiPixelPackedSampleModel.java
Or download all of them as a single archive file:
File name: jre-rt-java-1.8.0_191-src.zip File size: 6664831 bytes Release date: 2018-10-28 Download
⇒ JRE 8 rt.jar - javax.* Package Source Code
2023-08-23, 250363👍, 4💬
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