public static WritableRaster createPackedRaster(DataBuffer dataBuffer,
int w, int h, int scanlineStride, int [] bandMasks, Point location)
{
if (dataBuffer == null)
{
// awt.278=dataBuffer is null
throw new java.lang.NullPointerException("dataBuffer is null"); //$NON-NLS-1$
}
if (w <= 0 || h <= 0)
{
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException("w or h is less than or equal to zero"); //$NON-NLS-1$
}
if (location == null)
{
location = new Point(0, 0);
}
if ((long)location.x + w > java.lang.Integer.MAX_VALUE ||
(long)location.y + h > java.lang.Integer.MAX_VALUE)
{
// awt.276=location.x + w or location.y + h results in integer overflow
throw new RasterFormatException("location.x + w or location.y + h results in integer overflow"); //$NON-NLS-1$
}
if (bandMasks == null)
{
// awt.27C=bandMasks is null
throw new RasterFormatException("bandMasks is null"); //$NON-NLS-1$
}
if (dataBuffer.getNumBanks() > 1)
{
// awt.27A=dataBuffer has more than one bank
throw new RasterFormatException("dataBuffer has more than one bank"); //$NON-NLS-1$
}
int dataType = dataBuffer.getDataType();
if (dataType != DataBuffer.TYPE_BYTE &&
dataType != DataBuffer.TYPE_USHORT &&
dataType != DataBuffer.TYPE_INT)
{
// awt.230=dataType is not one of the supported data types
throw new java.lang.IllegalArgumentException("dataType is not one of the supported data types"); //$NON-NLS-1$
}
SinglePixelPackedSampleModel sampleModel =
new SinglePixelPackedSampleModel(dataType, w, h,
scanlineStride, bandMasks);
return(new OrdinaryWritableRaster(sampleModel, dataBuffer, location));
}
public override bool Equals(Object o)
{
if ((o == null) || !(o is SinglePixelPackedSampleModel))
{
return(false);
}
SinglePixelPackedSampleModel model = (SinglePixelPackedSampleModel)o;
return(this.width == model.width &&
this.height == model.height &&
this.numBands == model.numBands &&
this.dataType == model.dataType &&
java.util.Arrays <Object> .equals(this.bitMasks, model.bitMasks) &&
java.util.Arrays <Object> .equals(this.bitOffsets, model.bitOffsets) &&
java.util.Arrays <Object> .equals(this.bitSizes, model.bitSizes) &&
this.scanlineStride == model.scanlineStride);
}
private static void validateDataBuffer(DataBuffer dataBuffer, int w,
int h, SampleModel sampleModel)
{
int size = 0;
if (sampleModel is ComponentSampleModel)
{
ComponentSampleModel csm = (ComponentSampleModel)sampleModel;
int [] offsets = csm.getBandOffsets();
int maxOffset = offsets[0];
for (int i = 1; i < offsets.Length; i++)
{
if (offsets[i] > maxOffset)
{
maxOffset = offsets[i];
}
}
int scanlineStride = csm.getScanlineStride();
int pixelStride = csm.getPixelStride();
size = (h - 1) * scanlineStride +
(w - 1) * pixelStride + maxOffset + 1;
}
else if (sampleModel is MultiPixelPackedSampleModel)
{
MultiPixelPackedSampleModel mppsm =
(MultiPixelPackedSampleModel)sampleModel;
int scanlineStride = mppsm.getScanlineStride();
int dataBitOffset = mppsm.getDataBitOffset();
int dataType = dataBuffer.getDataType();
size = scanlineStride * h;
switch (dataType)
{
case DataBuffer.TYPE_BYTE:
size += (dataBitOffset + 7) / 8;
break;
case DataBuffer.TYPE_USHORT:
size += (dataBitOffset + 15) / 16;
break;
case DataBuffer.TYPE_INT:
size += (dataBitOffset + 31) / 32;
break;
}
}
else if (sampleModel is SinglePixelPackedSampleModel)
{
SinglePixelPackedSampleModel sppsm =
(SinglePixelPackedSampleModel)sampleModel;
int scanlineStride = sppsm.getScanlineStride();
size = (h - 1) * scanlineStride + w;
}
if (dataBuffer.getSize() < size)
{
// awt.298=dataBuffer is too small
throw new RasterFormatException("dataBuffer is too small"); //$NON-NLS-1$
}
}
public static WritableRaster createPackedRaster(DataBuffer dataBuffer,
int w, int h, int scanlineStride, int [] bandMasks, Point location)
{
if (dataBuffer == null) {
// awt.278=dataBuffer is null
throw new java.lang.NullPointerException("dataBuffer is null"); //$NON-NLS-1$
}
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException("w or h is less than or equal to zero"); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
if ((long) location.x + w > java.lang.Integer.MAX_VALUE
|| (long) location.y + h > java.lang.Integer.MAX_VALUE) {
// awt.276=location.x + w or location.y + h results in integer overflow
throw new RasterFormatException("location.x + w or location.y + h results in integer overflow"); //$NON-NLS-1$
}
if (bandMasks == null) {
// awt.27C=bandMasks is null
throw new RasterFormatException("bandMasks is null"); //$NON-NLS-1$
}
if (dataBuffer.getNumBanks() > 1) {
// awt.27A=dataBuffer has more than one bank
throw new RasterFormatException("dataBuffer has more than one bank"); //$NON-NLS-1$
}
int dataType = dataBuffer.getDataType();
if (dataType != DataBuffer.TYPE_BYTE
&& dataType != DataBuffer.TYPE_USHORT
&& dataType != DataBuffer.TYPE_INT) {
// awt.230=dataType is not one of the supported data types
throw new java.lang.IllegalArgumentException("dataType is not one of the supported data types"); //$NON-NLS-1$
}
SinglePixelPackedSampleModel sampleModel =
new SinglePixelPackedSampleModel(dataType, w, h,
scanlineStride, bandMasks);
return new OrdinaryWritableRaster(sampleModel, dataBuffer, location);
}