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-rw-r--r--java/awt/image/SampleModel.java412
1 files changed, 226 insertions, 186 deletions
diff --git a/java/awt/image/SampleModel.java b/java/awt/image/SampleModel.java
index 115966222..6e3fd4069 100644
--- a/java/awt/image/SampleModel.java
+++ b/java/awt/image/SampleModel.java
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2002, 2005 Free Software Foundation
+/* Copyright (C) 2000, 2001, 2002, 2005, 2006, Free Software Foundation
This file is part of GNU Classpath.
@@ -57,15 +57,43 @@ public abstract class SampleModel
*/
protected int dataType;
+ /**
+ * Creates a new sample model with the specified attributes.
+ *
+ * @param dataType the data type (one of {@link DataBuffer#TYPE_BYTE},
+ * {@link DataBuffer#TYPE_USHORT}, {@link DataBuffer#TYPE_SHORT},
+ * {@link DataBuffer#TYPE_INT}, {@link DataBuffer#TYPE_FLOAT},
+ * {@link DataBuffer#TYPE_DOUBLE} or {@link DataBuffer#TYPE_UNDEFINED}).
+ * @param w the width in pixels (must be greater than zero).
+ * @param h the height in pixels (must be greater than zero).
+ * @param numBands the number of bands (must be greater than zero).
+ *
+ * @throws IllegalArgumentException if <code>dataType</code> is not one of
+ * the listed values.
+ * @throws IllegalArgumentException if <code>w</code> is less than or equal
+ * to zero.
+ * @throws IllegalArgumentException if <code>h</code> is less than or equal
+ * to zero.
+ * @throws IllegalArgumentException if <code>w * h</code> is greater than
+ * {@link Integer#MAX_VALUE}.
+ */
public SampleModel(int dataType, int w, int h, int numBands)
{
+ if (dataType != DataBuffer.TYPE_UNDEFINED)
+ if (dataType < DataBuffer.TYPE_BYTE || dataType > DataBuffer.TYPE_DOUBLE)
+ throw new IllegalArgumentException("Unrecognised 'dataType' argument.");
+
if ((w <= 0) || (h <= 0))
throw new IllegalArgumentException((w <= 0 ? " width<=0" : " width is ok")
- +(h <= 0 ? " height<=0" : " height is ok"));
-
- // FIXME: How can an int be greater than Integer.MAX_VALUE?
- // FIXME: How do we identify an unsupported data type?
-
+ + (h <= 0 ? " height<=0" : " height is ok"));
+
+ long area = (long) w * (long) h;
+ if (area > Integer.MAX_VALUE)
+ throw new IllegalArgumentException("w * h exceeds Integer.MAX_VALUE.");
+
+ if (numBands <= 0)
+ throw new IllegalArgumentException("Requires numBands > 0.");
+
this.dataType = dataType;
this.width = w;
this.height = h;
@@ -102,8 +130,10 @@ public abstract class SampleModel
public int[] getPixel(int x, int y, int[] iArray, DataBuffer data)
{
- if (iArray == null) iArray = new int[numBands];
- for (int b=0; b<numBands; b++) iArray[b] = getSample(x, y, b, data);
+ if (iArray == null)
+ iArray = new int[numBands];
+ for (int b = 0; b < numBands; b++)
+ iArray[b] = getSample(x, y, b, data);
return iArray;
}
@@ -121,94 +151,95 @@ public abstract class SampleModel
* DataBuffer.TYPE_USHORT, then a short[] object is returned.
*/
public abstract Object getDataElements(int x, int y, Object obj,
- DataBuffer data);
+ DataBuffer data);
public Object getDataElements(int x, int y, int w, int h, Object obj,
- DataBuffer data)
+ DataBuffer data)
{
- int size = w*h;
+ int size = w * h;
int numDataElements = getNumDataElements();
- int dataSize = numDataElements*size;
+ int dataSize = numDataElements * size;
if (obj == null)
{
- switch (getTransferType())
- {
- case DataBuffer.TYPE_BYTE:
- obj = new byte[dataSize];
- break;
- case DataBuffer.TYPE_USHORT:
- obj = new short[dataSize];
- break;
- case DataBuffer.TYPE_INT:
- obj = new int[dataSize];
- break;
- default:
- // Seems like the only sensible thing to do.
- throw new ClassCastException();
- }
+ switch (getTransferType())
+ {
+ case DataBuffer.TYPE_BYTE:
+ obj = new byte[dataSize];
+ break;
+ case DataBuffer.TYPE_USHORT:
+ obj = new short[dataSize];
+ break;
+ case DataBuffer.TYPE_INT:
+ obj = new int[dataSize];
+ break;
+ default:
+ // Seems like the only sensible thing to do.
+ throw new ClassCastException();
+ }
}
Object pixelData = null;
int outOffset = 0;
- for (int yy = y; yy<(y+h); yy++)
+ for (int yy = y; yy < (y + h); yy++)
{
- for (int xx = x; xx<(x+w); xx++)
- {
- pixelData = getDataElements(xx, yy, pixelData, data);
- System.arraycopy(pixelData, 0, obj, outOffset,
- numDataElements);
- outOffset += numDataElements;
- }
+ for (int xx = x; xx < (x + w); xx++)
+ {
+ pixelData = getDataElements(xx, yy, pixelData, data);
+ System.arraycopy(pixelData, 0, obj, outOffset,
+ numDataElements);
+ outOffset += numDataElements;
+ }
}
return obj;
}
public abstract void setDataElements(int x, int y, Object obj,
- DataBuffer data);
+ DataBuffer data);
public void setDataElements(int x, int y, int w, int h,
- Object obj, DataBuffer data)
+ Object obj, DataBuffer data)
{
- int size = w*h;
+ int size = w * h;
int numDataElements = getNumDataElements();
- int dataSize = numDataElements*size;
+ int dataSize = numDataElements * size;
Object pixelData;
switch (getTransferType())
{
case DataBuffer.TYPE_BYTE:
- pixelData = new byte[numDataElements];
- break;
+ pixelData = new byte[numDataElements];
+ break;
case DataBuffer.TYPE_USHORT:
- pixelData = new short[numDataElements];
- break;
+ pixelData = new short[numDataElements];
+ break;
case DataBuffer.TYPE_INT:
- pixelData = new int[numDataElements];
- break;
+ pixelData = new int[numDataElements];
+ break;
default:
- // Seems like the only sensible thing to do.
- throw new ClassCastException();
+ // Seems like the only sensible thing to do.
+ throw new ClassCastException();
}
int inOffset = 0;
- for (int yy=y; yy<(y+h); yy++)
+ for (int yy = y; yy < (y + h); yy++)
{
- for (int xx=x; xx<(x+w); xx++)
- {
- System.arraycopy(obj, inOffset, pixelData, 0,
- numDataElements);
- setDataElements(xx, yy, pixelData, data);
- inOffset += numDataElements;
- }
+ for (int xx = x; xx < (x + w); xx++)
+ {
+ System.arraycopy(obj, inOffset, pixelData, 0,
+ numDataElements);
+ setDataElements(xx, yy, pixelData, data);
+ inOffset += numDataElements;
+ }
}
}
public float[] getPixel(int x, int y, float[] fArray, DataBuffer data)
{
- if (fArray == null) fArray = new float[numBands];
+ if (fArray == null)
+ fArray = new float[numBands];
- for (int b=0; b<numBands; b++)
+ for (int b = 0; b < numBands; b++)
{
fArray[b] = getSampleFloat(x, y, b, data);
}
@@ -216,10 +247,11 @@ public abstract class SampleModel
}
public double[] getPixel(int x, int y, double[] dArray, DataBuffer data) {
- if (dArray == null) dArray = new double[numBands];
- for (int b=0; b<numBands; b++)
+ if (dArray == null)
+ dArray = new double[numBands];
+ for (int b = 0; b < numBands; b++)
{
- dArray[b] = getSampleDouble(x, y, b, data);
+ dArray[b] = getSampleDouble(x, y, b, data);
}
return dArray;
}
@@ -227,20 +259,21 @@ public abstract class SampleModel
/* FIXME: Should it return a banded or pixel interleaved array of
samples? (Assume interleaved.) */
public int[] getPixels(int x, int y, int w, int h, int[] iArray,
- DataBuffer data)
+ DataBuffer data)
{
- int size = w*h;
+ int size = w * h;
int outOffset = 0;
int[] pixel = null;
- if (iArray == null) iArray = new int[w*h*numBands];
- for (int yy=y; yy<(y+h); yy++)
+ if (iArray == null)
+ iArray = new int[w * h * numBands];
+ for (int yy = y; yy < (y + h); yy++)
{
- for (int xx=x; xx<(x+w); xx++)
- {
- pixel = getPixel(xx, yy, pixel, data);
- System.arraycopy(pixel, 0, iArray, outOffset, numBands);
- outOffset += numBands;
- }
+ for (int xx = x; xx < (x + w); xx++)
+ {
+ pixel = getPixel(xx, yy, pixel, data);
+ System.arraycopy(pixel, 0, iArray, outOffset, numBands);
+ outOffset += numBands;
+ }
}
return iArray;
}
@@ -248,20 +281,20 @@ public abstract class SampleModel
/* FIXME: Should it return a banded or pixel interleaved array of
samples? (Assume interleaved.) */
public float[] getPixels(int x, int y, int w, int h, float[] fArray,
- DataBuffer data)
+ DataBuffer data)
{
- int size = w*h;
+ int size = w * h;
int outOffset = 0;
float[] pixel = null;
- if (fArray == null) fArray = new float[w*h*numBands];
- for (int yy=y; yy<(y+h); yy++)
+ if (fArray == null) fArray = new float[w * h * numBands];
+ for (int yy = y; yy < (y + h); yy++)
{
- for (int xx=x; xx<(x+w); xx++)
- {
- pixel = getPixel(xx, yy, pixel, data);
- System.arraycopy(pixel, 0, fArray, outOffset, numBands);
- outOffset += numBands;
- }
+ for (int xx = x; xx < (x + w); xx++)
+ {
+ pixel = getPixel(xx, yy, pixel, data);
+ System.arraycopy(pixel, 0, fArray, outOffset, numBands);
+ outOffset += numBands;
+ }
}
return fArray;
}
@@ -269,20 +302,21 @@ public abstract class SampleModel
/* FIXME: Should it return a banded or pixel interleaved array of
samples? (Assume interleaved.) */
public double[] getPixels(int x, int y, int w, int h, double[] dArray,
- DataBuffer data)
+ DataBuffer data)
{
- int size = w*h;
+ int size = w * h;
int outOffset = 0;
double[] pixel = null;
- if (dArray == null) dArray = new double[w*h*numBands];
- for (int yy=y; yy<(y+h); yy++)
+ if (dArray == null)
+ dArray = new double[w * h * numBands];
+ for (int yy = y; yy < (y + h); yy++)
{
- for (int xx=x; xx<(x+w); xx++)
- {
- pixel = getPixel(xx, yy, pixel, data);
- System.arraycopy(pixel, 0, dArray, outOffset, numBands);
- outOffset += numBands;
- }
+ for (int xx = x; xx < (x + w); xx++)
+ {
+ pixel = getPixel(xx, yy, pixel, data);
+ System.arraycopy(pixel, 0, dArray, outOffset, numBands);
+ outOffset += numBands;
+ }
}
return dArray;
}
@@ -300,179 +334,185 @@ public abstract class SampleModel
}
public int[] getSamples(int x, int y, int w, int h, int b,
- int[] iArray, DataBuffer data)
+ int[] iArray, DataBuffer data)
{
- int size = w*h;
+ int size = w * h;
int outOffset = 0;
- if (iArray == null) iArray = new int[size];
- for (int yy=y; yy<(y+h); yy++)
+ if (iArray == null)
+ iArray = new int[size];
+ for (int yy = y; yy < (y + h); yy++)
{
- for (int xx=x; xx<(x+w); xx++)
- {
- iArray[outOffset++] = getSample(xx, yy, b, data);
- }
+ for (int xx = x; xx < (x + w); xx++)
+ {
+ iArray[outOffset++] = getSample(xx, yy, b, data);
+ }
}
return iArray;
}
public float[] getSamples(int x, int y, int w, int h, int b,
- float[] fArray, DataBuffer data)
+ float[] fArray, DataBuffer data)
{
- int size = w*h;
+ int size = w * h;
int outOffset = 0;
- if (fArray == null) fArray = new float[size];
- for (int yy=y; yy<(y+h); yy++)
+ if (fArray == null)
+ fArray = new float[size];
+ for (int yy = y; yy < (y + h); yy++)
{
- for (int xx=x; xx<(x+w); xx++)
- {
- fArray[outOffset++] = getSampleFloat(xx, yy, b, data);
- }
+ for (int xx = x; xx < (x + w); xx++)
+ {
+ fArray[outOffset++] = getSampleFloat(xx, yy, b, data);
+ }
}
return fArray;
}
public double[] getSamples(int x, int y, int w, int h, int b,
- double[] dArray, DataBuffer data)
+ double[] dArray, DataBuffer data)
{
- int size = w*h;
+ int size = w * h;
int outOffset = 0;
- if (dArray == null) dArray = new double[size];
- for (int yy=y; yy<(y+h); yy++)
+ if (dArray == null)
+ dArray = new double[size];
+ for (int yy = y; yy < (y + h); yy++)
{
- for (int xx=x; xx<(x+w); xx++)
- {
- dArray[outOffset++] = getSampleDouble(xx, yy, b, data);
- }
+ for (int xx = x; xx < (x + w); xx++)
+ {
+ dArray[outOffset++] = getSampleDouble(xx, yy, b, data);
+ }
}
return dArray;
}
public void setPixel(int x, int y, int[] iArray, DataBuffer data)
{
- for (int b=0; b<numBands; b++) setSample(x, y, b, iArray[b], data);
+ for (int b = 0; b < numBands; b++)
+ setSample(x, y, b, iArray[b], data);
}
public void setPixel(int x, int y, float[] fArray, DataBuffer data)
{
- for (int b=0; b<numBands; b++) setSample(x, y, b, fArray[b], data);
+ for (int b = 0; b < numBands; b++)
+ setSample(x, y, b, fArray[b], data);
}
public void setPixel(int x, int y, double[] dArray, DataBuffer data)
{
- for (int b=0; b<numBands; b++) setSample(x, y, b, dArray[b], data);
+ for (int b = 0; b < numBands; b++)
+ setSample(x, y, b, dArray[b], data);
}
public void setPixels(int x, int y, int w, int h, int[] iArray,
- DataBuffer data)
+ DataBuffer data)
{
int inOffset = 0;
int[] pixel = new int[numBands];
- for (int yy=y; yy<(y+h); yy++)
+ for (int yy = y; yy < (y + h); yy++)
{
- for (int xx=x; xx<(x+w); xx++)
- {
- System.arraycopy(iArray, inOffset, pixel, 0, numBands);
- setPixel(xx, yy, pixel, data);
- inOffset += numBands;
- }
+ for (int xx = x; xx < (x + w); xx++)
+ {
+ System.arraycopy(iArray, inOffset, pixel, 0, numBands);
+ setPixel(xx, yy, pixel, data);
+ inOffset += numBands;
+ }
}
}
public void setPixels(int x, int y, int w, int h, float[] fArray,
- DataBuffer data)
+ DataBuffer data)
{
int inOffset = 0;
float[] pixel = new float[numBands];
- for (int yy=y; yy<(y+h); yy++)
+ for (int yy = y; yy < (y + h); yy++)
{
- for (int xx=x; xx<(x+w); xx++)
- {
- System.arraycopy(fArray, inOffset, pixel, 0, numBands);
- setPixel(xx, yy, pixel, data);
- inOffset += numBands;
- }
+ for (int xx = x; xx < (x + w); xx++)
+ {
+ System.arraycopy(fArray, inOffset, pixel, 0, numBands);
+ setPixel(xx, yy, pixel, data);
+ inOffset += numBands;
+ }
}
}
public void setPixels(int x, int y, int w, int h, double[] dArray,
- DataBuffer data)
+ DataBuffer data)
{
int inOffset = 0;
double[] pixel = new double[numBands];
- for (int yy=y; yy<(y+h); yy++)
+ for (int yy = y; yy < (y + h); yy++)
{
- for (int xx=x; xx<(x+w); xx++)
- {
- System.arraycopy(dArray, inOffset, pixel, 0, numBands);
- setPixel(xx, yy, pixel, data);
- inOffset += numBands;
- }
+ for (int xx = x; xx < (x + w); xx++)
+ {
+ System.arraycopy(dArray, inOffset, pixel, 0, numBands);
+ setPixel(xx, yy, pixel, data);
+ inOffset += numBands;
+ }
}
}
public abstract void setSample(int x, int y, int b, int s,
- DataBuffer data);
+ DataBuffer data);
public void setSample(int x, int y, int b, float s,
- DataBuffer data)
+ DataBuffer data)
{
setSample(x, y, b, (int) s, data);
}
public void setSample(int x, int y, int b, double s,
- DataBuffer data)
+ DataBuffer data)
{
setSample(x, y, b, (float) s, data);
}
public void setSamples(int x, int y, int w, int h, int b,
- int[] iArray, DataBuffer data)
+ int[] iArray, DataBuffer data)
{
- int size = w*h;
+ int size = w * h;
int inOffset = 0;
- for (int yy=y; yy<(y+h); yy++)
- for (int xx=x; xx<(x+w); xx++)
- setSample(xx, yy, b, iArray[inOffset++], data);
+ for (int yy = y; yy < (y + h); yy++)
+ for (int xx = x; xx < (x + w); xx++)
+ setSample(xx, yy, b, iArray[inOffset++], data);
}
public void setSamples(int x, int y, int w, int h, int b,
- float[] fArray, DataBuffer data)
+ float[] fArray, DataBuffer data)
{
- int size = w*h;
+ int size = w * h;
+ int inOffset = 0;
+ for (int yy = y; yy < (y + h); yy++)
+ for (int xx = x; xx < (x + w); xx++)
+ setSample(xx, yy, b, fArray[inOffset++], data);
+
+ }
+
+ public void setSamples(int x, int y, int w, int h, int b,
+ double[] dArray, DataBuffer data) {
+ int size = w * h;
int inOffset = 0;
- for (int yy=y; yy<(y+h); yy++)
- for (int xx=x; xx<(x+w); xx++)
- setSample(xx, yy, b, fArray[inOffset++], data);
-
- }
-
- public void setSamples(int x, int y, int w, int h, int b,
- double[] dArray, DataBuffer data) {
- int size = w*h;
- int inOffset = 0;
- for (int yy=y; yy<(y+h); yy++)
- for (int xx=x; xx<(x+w); xx++)
- setSample(xx, yy, b, dArray[inOffset++], data);
- }
-
- public abstract SampleModel createCompatibleSampleModel(int w, int h);
-
- /**
- * Return a SampleModel with a subset of the bands in this model.
- *
- * Selects bands.length bands from this sample model. The bands chosen
- * are specified in the indices of bands[]. This also permits permuting
- * the bands as well as taking a subset. Thus, giving an array with
- * 1, 2, 3, ..., numbands, will give an identical sample model.
- *
- * @param bands Array with band indices to include.
- * @return A new sample model
- */
- public abstract SampleModel createSubsetSampleModel(int[] bands);
-
- public abstract DataBuffer createDataBuffer();
-
- public abstract int[] getSampleSize();
-
- public abstract int getSampleSize(int band);
+ for (int yy = y; yy < (y + h); yy++)
+ for (int xx = x; xx < (x + w); xx++)
+ setSample(xx, yy, b, dArray[inOffset++], data);
+ }
+
+ public abstract SampleModel createCompatibleSampleModel(int w, int h);
+
+ /**
+ * Return a SampleModel with a subset of the bands in this model.
+ *
+ * Selects bands.length bands from this sample model. The bands chosen
+ * are specified in the indices of bands[]. This also permits permuting
+ * the bands as well as taking a subset. Thus, giving an array with
+ * 1, 2, 3, ..., numbands, will give an identical sample model.
+ *
+ * @param bands Array with band indices to include.
+ * @return A new sample model
+ */
+ public abstract SampleModel createSubsetSampleModel(int[] bands);
+
+ public abstract DataBuffer createDataBuffer();
+
+ public abstract int[] getSampleSize();
+
+ public abstract int getSampleSize(int band);
}
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