+++ /dev/null
-/* Copyright (C) 2000, 2002 Free Software Foundation
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath 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 for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-package java.awt.image;
-
-import gnu.java.awt.Buffers;
-
-/* FIXME: This class does not yet support data type TYPE_SHORT */
-
-/**
- * @author Rolf W. Rasmussen <rolfwr@ii.uib.no>
- */
-public class ComponentSampleModel extends SampleModel
-{
- protected int[] bandOffsets;
- protected int[] bankIndices;
-
- // FIXME: Should we really shadow the numBands in the superclass?
- //protected int numBands;
-
- /** Used when creating data buffers. */
- protected int numBanks;
-
- protected int scanlineStride;
-
- protected int pixelStride;
-
- private boolean tightPixelPacking = false;
-
- public ComponentSampleModel(int dataType,
- int w, int h,
- int pixelStride,
- int scanlineStride,
- int[] bandOffsets)
- {
- this(dataType, w, h, pixelStride, scanlineStride,
- new int[bandOffsets.length], bandOffsets);
- }
-
- public ComponentSampleModel(int dataType,
- int w, int h,
- int pixelStride,
- int scanlineStride,
- int[] bankIndices,
- int[] bandOffsets)
- {
- super(dataType, w, h, bandOffsets.length);
- if ((pixelStride<0) || (scanlineStride<0) ||
- (bandOffsets.length<1) ||
- (bandOffsets.length != bankIndices.length))
- throw new IllegalArgumentException();
-
- this.bandOffsets = bandOffsets;
- this.bankIndices = bankIndices;
-
- for (int b=0; b<bankIndices.length; b++)
- this.numBanks = Math.max(this.numBanks, bankIndices[b]+1);
-
- this.scanlineStride = scanlineStride;
- this.pixelStride = pixelStride;
-
- // See if we can use some speedups
-
- /* FIXME: May these checks should be reserved for the
- PixelInterleavedSampleModel? */
-
- if (pixelStride == numBands)
- {
- tightPixelPacking = true;
- for (int b=0; b<numBands; b++) {
- if ((bandOffsets[b] != b) || (bankIndices[b] !=0))
- {
- tightPixelPacking = false;
- break;
- }
- }
- }
- }
-
- public SampleModel createCompatibleSampleModel(int w, int h)
- {
- return new ComponentSampleModel(dataType, w, h, pixelStride,
- scanlineStride, bankIndices,
- bandOffsets);
- }
-
- public SampleModel createSubsetSampleModel(int[] bands)
- {
- int numBands = bands.length;
-
- int[] bankIndices = new int[numBands];
- int[] bandOffsets = new int[numBands];
- for (int b=0; b<numBands; b++)
- {
- bankIndices[b] = this.bankIndices[bands[b]];
- bandOffsets[b] = this.bandOffsets[bands[b]];
- }
-
- return new ComponentSampleModel(dataType, width, height, pixelStride,
- scanlineStride, bankIndices,
- bandOffsets);
- }
-
- public DataBuffer createDataBuffer()
- {
- // Maybe this value should be precalculated in the constructor?
- int highestOffset = 0;
- for (int b=0; b<numBands; b++)
- {
- highestOffset = Math.max(highestOffset, bandOffsets[b]);
- }
- int size = pixelStride*(width-1) + scanlineStride*(height-1) +
- highestOffset + 1;
-
- return Buffers.createBuffer(getDataType(), size, numBanks);
- }
-
- public int getOffset(int x, int y)
- {
- return getOffset(x, y, 0);
- }
-
- public int getOffset(int x, int y, int b)
- {
- return bandOffsets[b] + pixelStride*x + scanlineStride*y;
- }
-
- public final int[] getSampleSize()
- {
- int size = DataBuffer.getDataTypeSize(getDataType());
- int[] sizes = new int[numBands];
-
- java.util.Arrays.fill(sizes, size);
- return sizes;
- }
-
- public final int getSampleSize(int band)
- {
- return DataBuffer.getDataTypeSize(getDataType());
- }
-
- public final int[] getBankIndices()
- {
- return bankIndices;
- }
-
- public final int[] getBandOffsets()
- {
- return bandOffsets;
- }
-
- public final int getScanlineStride()
- {
- return scanlineStride;
- }
-
- public final int getPixelStride()
- {
- return pixelStride;
- }
-
- public final int getNumDataElements()
- {
- return numBands;
- }
-
- public Object getDataElements(int x, int y, Object obj, DataBuffer data)
- {
- int xyOffset = pixelStride*x + scanlineStride*y;
-
- int[] totalBandDataOffsets = new int[numBands];
-
- /* Notice that band and bank offsets are different. Band offsets
- are managed by the sample model, and bank offsets are managed
- by the data buffer. Both must be accounted for. */
-
- /* FIXME: For single pixels, it is probably easier to simple
- call getElem instead of calculating the bank offset ourself.
-
- On the other hand, then we need to push the value through
- the int type returned by the getElem method. */
-
- int[] bankOffsets = data.getOffsets();
-
- for (int b=0; b<numBands; b++)
- {
- totalBandDataOffsets[b] =
- bandOffsets[b]+bankOffsets[bankIndices[b]] + xyOffset;
- }
-
- try
- {
- switch (getTransferType())
- {
- case DataBuffer.TYPE_BYTE:
- DataBufferByte inByte = (DataBufferByte) data;
- byte[] outByte = (byte[]) obj;
- if (outByte == null) outByte = new byte[numBands];
-
- for (int b=0; b<numBands; b++)
- {
- int dOffset = totalBandDataOffsets[b];
- outByte[b] = inByte.getData(bankIndices[b])[dOffset];
- }
- return outByte;
-
- case DataBuffer.TYPE_USHORT:
- DataBufferUShort inUShort = (DataBufferUShort) data;
- short[] outUShort = (short[]) obj;
- if (outUShort == null) outUShort = new short[numBands];
-
- for (int b=0; b<numBands; b++)
- {
- int dOffset = totalBandDataOffsets[b];
- outUShort[b] = inUShort.getData(bankIndices[b])[dOffset];
- }
- return outUShort;
-
- case DataBuffer.TYPE_INT:
- DataBufferInt inInt = (DataBufferInt) data;
- int[] outInt = (int[]) obj;
- if (outInt == null) outInt = new int[numBands];
-
- for (int b=0; b<numBands; b++)
- {
- int dOffset = totalBandDataOffsets[b];
- outInt[b] = inInt.getData(bankIndices[b])[dOffset];
- }
- return outInt;
-
- // FIXME: Fill in the other possible types.
- default:
- throw new IllegalStateException("unknown transfer type " +
- getTransferType());
- }
- }
- catch (ArrayIndexOutOfBoundsException aioobe)
- {
- String msg = "While reading data elements, " +
- "x=" + x + ", y=" + y +", " + ", xyOffset=" + xyOffset +
- ", data.getSize()=" + data.getSize() + ": " + aioobe;
- throw new ArrayIndexOutOfBoundsException(msg);
- }
- }
-
- public Object getDataElements(int x, int y, int w, int h, Object obj,
- DataBuffer data)
- {
- if (!tightPixelPacking)
- {
- return super.getDataElements(x, y, w, h, obj, data);
- }
-
- // using get speedup
-
- // We can copy whole rows
- int rowSize = w*numBands;
- int dataSize = rowSize*h;
-
- DataBuffer transferBuffer =
- Buffers.createBuffer(getTransferType(), obj, dataSize);
- obj = Buffers.getData(transferBuffer);
-
- int inOffset =
- pixelStride*x +
- scanlineStride*y +
- data.getOffset(); // Assumes only one band is used
-
- /* We don't add band offsets since we assume that bands have
- offsets 0, 1, 2, ... */
-
- // See if we can copy everything in one go
- if (scanlineStride == rowSize)
- {
- // Collapse scan lines:
- rowSize *= h;
- // We ignore scanlineStride since it won't be of any use
- h = 1;
- }
-
- int outOffset = 0;
- Object inArray = Buffers.getData(data);
- for (int yd = 0; yd<h; yd++)
- {
- System.arraycopy(inArray, inOffset, obj, outOffset, rowSize);
- inOffset += scanlineStride;
- outOffset += rowSize;
- }
- return obj;
- }
-
- public void setDataElements(int x, int y, int w, int h,
- Object obj, DataBuffer data)
- {
- if (!tightPixelPacking)
- {
- super.setDataElements(x, y, w, h, obj, data);
- return;
- }
-
- // using set speedup, we can copy whole rows
- int rowSize = w*numBands;
- int dataSize = rowSize*h;
-
- DataBuffer transferBuffer =
- Buffers.createBufferFromData(getTransferType(), obj, dataSize);
-
- int[] bankOffsets = data.getOffsets();
-
- int outOffset =
- pixelStride*x +
- scanlineStride*y +
- bankOffsets[0]; // same assuptions as in get...
-
- // See if we can copy everything in one go
- if (scanlineStride == rowSize)
- {
- // Collapse scan lines:
- scanlineStride = rowSize *= h;
- h = 1;
- }
-
- int inOffset = 0;
- Object outArray = Buffers.getData(data);
- for (int yd = 0; yd<h; yd++)
- {
- System.arraycopy(obj, inOffset, outArray, outOffset, rowSize);
- outOffset += scanlineStride;
- inOffset += rowSize;
- }
- }
-
- public int[] getPixel(int x, int y, int[] iArray, DataBuffer data)
- {
- int offset = pixelStride*x + scanlineStride*y;
- if (iArray == null) iArray = new int[numBands];
- for (int b=0; b<numBands; b++)
- {
- iArray[b] = data.getElem(bankIndices[b], offset+bandOffsets[b]);
- }
- return iArray;
- }
-
- public int[] getPixels(int x, int y, int w, int h, int[] iArray,
- DataBuffer data)
- {
- int offset = pixelStride*x + scanlineStride*y;
- if (iArray == null) iArray = new int[numBands*w*h];
- int outOffset = 0;
- for (y=0; y<h; y++)
- {
- int lineOffset = offset;
- for (x=0; x<w; x++)
- {
- for (int b=0; b<numBands; b++)
- {
- iArray[outOffset++] =
- data.getElem(bankIndices[b], lineOffset+bandOffsets[b]);
- }
- lineOffset += pixelStride;
- }
- offset += scanlineStride;
- }
- return iArray;
- }
-
- public int getSample(int x, int y, int b, DataBuffer data)
- {
- return data.getElem(bankIndices[b], getOffset(x, y, b));
- }
-
- public void setDataElements(int x, int y, Object obj, DataBuffer data)
- {
- int offset = pixelStride*x + scanlineStride*y;
- int[] totalBandDataOffsets = new int[numBands];
- int[] bankOffsets = data.getOffsets();
- for (int b=0; b<numBands; b++)
- totalBandDataOffsets[b] =
- bandOffsets[b]+bankOffsets[bankIndices[b]] + offset;
-
- switch (getTransferType())
- {
- case DataBuffer.TYPE_BYTE:
- {
- DataBufferByte out = (DataBufferByte) data;
- byte[] in = (byte[]) obj;
-
- for (int b=0; b<numBands; b++)
- out.getData(bankIndices[b])[totalBandDataOffsets[b]] = in[b];
-
- return;
- }
- case DataBuffer.TYPE_USHORT:
- {
- DataBufferUShort out = (DataBufferUShort) data;
- short[] in = (short[]) obj;
-
- for (int b=0; b<numBands; b++)
- out.getData(bankIndices[b])[totalBandDataOffsets[b]] = in[b];
-
- return;
- }
- case DataBuffer.TYPE_INT:
- {
- DataBufferInt out = (DataBufferInt) data;
- int[] in = (int[]) obj;
-
- for (int b=0; b<numBands; b++)
- out.getData(bankIndices[b])[totalBandDataOffsets[b]] = in[b];
-
- return;
- }
- default:
- throw new UnsupportedOperationException("transfer type not " +
- "implemented");
- }
- }
-
- public void setPixel(int x, int y, int[] iArray, DataBuffer data)
- {
- int offset = pixelStride*x + scanlineStride*y;
- for (int b=0; b<numBands; b++)
- data.setElem(bankIndices[b], offset+bandOffsets[b], iArray[b]);
- }
-
- public void setSample(int x, int y, int b, int s, DataBuffer data)
- {
- data.setElem(bankIndices[b], getOffset(x, y, b), s);
- }
-}
projects / msp430-gcc.git / blobdiff