1 /*
 2  * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.  Oracle designates this
 8  * particular file as subject to the "Classpath" exception as provided
 9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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24  */
25 package hat.buffer;
26 
27 import optkl.ifacemapper.Buffer;
28 import optkl.ifacemapper.MappableIface;
29 
30 import java.awt.image.BufferedImage;
31 import java.awt.image.DataBuffer;
32 import java.awt.image.DataBufferByte;
33 import java.awt.image.DataBufferInt;
34 import java.awt.image.DataBufferUShort;
35 import java.lang.foreign.MemorySegment;
36 
37 import static java.lang.foreign.ValueLayout.JAVA_BYTE;
38 import static java.lang.foreign.ValueLayout.JAVA_INT;
39 import static java.lang.foreign.ValueLayout.JAVA_SHORT;
40 
41 public interface ImageIfaceBuffer<T extends ImageIfaceBuffer<?>> extends Buffer {
42     @SuppressWarnings("unchecked")
43     default T syncFromRasterDataBuffer(DataBuffer dataBuffer) { // int[], byte[], short[]
44         switch (dataBuffer) {
45             case DataBufferInt arr ->
46                     MemorySegment.copy(arr.getData(), 0, MappableIface.getMemorySegment(this), JAVA_INT, 16L, arr.getData().length);
47             case DataBufferByte arr ->
48                     MemorySegment.copy(arr.getData(), 0, MappableIface.getMemorySegment(this), JAVA_BYTE, 16L, arr.getData().length);
49             case DataBufferUShort arr ->
50                     MemorySegment.copy(arr.getData(), 0, MappableIface.getMemorySegment(this), JAVA_SHORT, 16L, arr.getData().length);
51             default -> throw new IllegalStateException("Unexpected value: " + dataBuffer);
52         }
53         return (T)this;
54     }
55 
56     default T syncFromRaster(BufferedImage bufferedImage) { // int[], byte[], short[]
57         return syncFromRasterDataBuffer(bufferedImage.getRaster().getDataBuffer());
58     }
59 
60     @SuppressWarnings("unchecked")
61     default T syncToRasterDataBuffer(DataBuffer dataBuffer) { // int[], byte[], short[]
62         switch (dataBuffer) {
63             case DataBufferUShort arr ->
64                     MemorySegment.copy(MappableIface.getMemorySegment(this), JAVA_SHORT, 16L, arr.getData(), 0, arr.getData().length);
65             case DataBufferInt arr ->
66                     MemorySegment.copy(MappableIface.getMemorySegment(this), JAVA_INT, 16L, arr.getData(), 0, arr.getData().length);
67             case DataBufferByte arr ->
68                     MemorySegment.copy(MappableIface.getMemorySegment(this), JAVA_BYTE, 16L, arr.getData(), 0, arr.getData().length);
69             default -> throw new IllegalStateException("Unexpected value: " + dataBuffer);
70         }
71         return (T) this;
72     }
73 
74     default T syncToRaster(BufferedImage bufferedImage) { // int[], byte[], short[]
75         return syncToRasterDataBuffer(bufferedImage.getRaster().getDataBuffer());
76     }
77 }