40 * same size. 41 * 42 * @see ByteLookupTable 43 * @see ShortLookupTable 44 * @see LookupOp 45 */ 46 public abstract class LookupTable extends Object{ 47 48 /** 49 * Constants 50 */ 51 52 int numComponents; 53 int offset; 54 int numEntries; 55 56 /** 57 * Constructs a new LookupTable from the number of components and an offset 58 * into the lookup table. 59 * @param offset the offset to subtract from input values before indexing 60 * into the data arrays for this <code>LookupTable</code> 61 * @param numComponents the number of data arrays in this 62 * <code>LookupTable</code> 63 * @throws IllegalArgumentException if <code>offset</code> is less than 0 64 * or if <code>numComponents</code> is less than 1 65 */ 66 protected LookupTable(int offset, int numComponents) { 67 if (offset < 0) { 68 throw new 69 IllegalArgumentException("Offset must be greater than 0"); 70 } 71 if (numComponents < 1) { 72 throw new IllegalArgumentException("Number of components must "+ 73 " be at least 1"); 74 } 75 this.numComponents = numComponents; 76 this.offset = offset; 77 } 78 79 /** 80 * Returns the number of components in the lookup table. 81 * @return the number of components in this <code>LookupTable</code>. 82 */ 83 public int getNumComponents() { 84 return numComponents; 85 } 86 87 /** 88 * Returns the offset. 89 * @return the offset of this <code>LookupTable</code>. 90 */ 91 public int getOffset() { 92 return offset; 93 } 94 95 /** 96 * Returns an <code>int</code> array of components for 97 * one pixel. The <code>dest</code> array contains the 98 * result of the lookup and is returned. If dest is 99 * <code>null</code>, a new array is allocated. The 100 * source and destination can be equal. 101 * @param src the source array of components of one pixel 102 * @param dest the destination array of components for one pixel, 103 * translated with this <code>LookupTable</code> 104 * @return an <code>int</code> array of components for one 105 * pixel. 106 */ 107 public abstract int[] lookupPixel(int[] src, int[] dest); 108 109 } | 40 * same size. 41 * 42 * @see ByteLookupTable 43 * @see ShortLookupTable 44 * @see LookupOp 45 */ 46 public abstract class LookupTable extends Object{ 47 48 /** 49 * Constants 50 */ 51 52 int numComponents; 53 int offset; 54 int numEntries; 55 56 /** 57 * Constructs a new LookupTable from the number of components and an offset 58 * into the lookup table. 59 * @param offset the offset to subtract from input values before indexing 60 * into the data arrays for this {@code LookupTable} 61 * @param numComponents the number of data arrays in this 62 * {@code LookupTable} 63 * @throws IllegalArgumentException if {@code offset} is less than 0 64 * or if {@code numComponents} is less than 1 65 */ 66 protected LookupTable(int offset, int numComponents) { 67 if (offset < 0) { 68 throw new 69 IllegalArgumentException("Offset must be greater than 0"); 70 } 71 if (numComponents < 1) { 72 throw new IllegalArgumentException("Number of components must "+ 73 " be at least 1"); 74 } 75 this.numComponents = numComponents; 76 this.offset = offset; 77 } 78 79 /** 80 * Returns the number of components in the lookup table. 81 * @return the number of components in this {@code LookupTable}. 82 */ 83 public int getNumComponents() { 84 return numComponents; 85 } 86 87 /** 88 * Returns the offset. 89 * @return the offset of this {@code LookupTable}. 90 */ 91 public int getOffset() { 92 return offset; 93 } 94 95 /** 96 * Returns an {@code int} array of components for 97 * one pixel. The {@code dest} array contains the 98 * result of the lookup and is returned. If dest is 99 * {@code null}, a new array is allocated. The 100 * source and destination can be equal. 101 * @param src the source array of components of one pixel 102 * @param dest the destination array of components for one pixel, 103 * translated with this {@code LookupTable} 104 * @return an {@code int} array of components for one 105 * pixel. 106 */ 107 public abstract int[] lookupPixel(int[] src, int[] dest); 108 109 } |