package java.awt.image;
public abstract class DataBuffer
{
public static final int TYPE_BYTE = 0;
public static final int TYPE_USHORT = 1;
public static final int TYPE_SHORT = 2;
public static final int TYPE_INT = 3;
public static final int TYPE_FLOAT = 4;
public static final int TYPE_DOUBLE = 5;
public static final int TYPE_UNDEFINED = 32;
protected int dataType;
protected int banks = 1;
protected int offset;
protected int size;
protected int[] offsets;
protected DataBuffer(int dataType, int size)
{
this.dataType = dataType;
this.size = size;
}
protected DataBuffer(int dataType, int size, int numBanks) {
this(dataType, size);
banks = numBanks;
offsets = new int[numBanks];
}
protected DataBuffer(int dataType, int size, int numBanks, int offset) {
this(dataType, size, numBanks);
java.util.Arrays.fill(offsets, offset);
this.offset = offset;
}
protected DataBuffer(int dataType, int size, int numBanks, int[] offsets) {
this(dataType, size);
if (numBanks != offsets.length)
throw new ArrayIndexOutOfBoundsException();
banks = numBanks;
this.offsets = offsets;
offset = offsets[0];
}
public static int getDataTypeSize(int dataType) {
switch (dataType)
{
case TYPE_BYTE:
return 8;
case TYPE_USHORT:
case TYPE_SHORT:
return 16;
case TYPE_INT:
case TYPE_FLOAT:
return 32;
case TYPE_DOUBLE:
return 64;
default:
throw new IllegalArgumentException();
}
}
public int getDataType()
{
return dataType;
}
public int getSize()
{
return size;
}
public int getOffset()
{
return offset;
}
public int[] getOffsets()
{
if (offsets == null)
{
offsets = new int[1];
offsets[0] = offset;
}
return offsets;
}
public int getNumBanks()
{
return banks;
}
public int getElem(int i)
{
return getElem(0, i);
}
public abstract int getElem(int bank, int i);
public void setElem(int i, int val)
{
setElem(0, i, val);
}
public abstract void setElem(int bank, int i, int val);
public float getElemFloat(int i)
{
return getElem(i);
}
public float getElemFloat(int bank, int i)
{
return getElem(bank, i);
}
public void setElemFloat(int i, float val)
{
setElem(i, (int) val);
}
public void setElemFloat(int bank, int i, float val)
{
setElem(bank, i, (int) val);
}
public double getElemDouble(int i)
{
return getElem(i);
}
public double getElemDouble(int bank, int i)
{
return getElem(bank, i);
}
public void setElemDouble(int i, double val)
{
setElem(i, (int) val);
}
public void setElemDouble(int bank, int i, double val)
{
setElem(bank, i, (int) val);
}
}