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modules/javafx.graphics/src/main/java/com/sun/javafx/image/PixelConverter.java
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| /* | ||
| * Copyright (c) 2012, 2024, Oracle and/or its affiliates. All rights reserved. | ||
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| * | ||
| * This code is free software; you can redistribute it and/or modify it | ||
| * under the terms of the GNU General Public License version 2 only, as | ||
| * published by the Free Software Foundation. Oracle designates this | ||
| * particular file as subject to the "Classpath" exception as provided | ||
| * by Oracle in the LICENSE file that accompanied this code. | ||
| * | ||
| * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| * version 2 for more details (a copy is included in the LICENSE file that | ||
| * accompanied this code). | ||
| * | ||
| * You should have received a copy of the GNU General Public License version | ||
| * 2 along with this work; if not, write to the Free Software Foundation, | ||
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| * | ||
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| * or visit www.oracle.com if you need additional information or have any | ||
| * questions. | ||
| */ | ||
|
|
||
| package com.sun.javafx.image; | ||
|
|
||
| import java.nio.Buffer; | ||
|
|
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| public interface PixelConverter<T extends Buffer, U extends Buffer> { | ||
| /** | ||
| * Copies a rectangular region of data from the source buffer to the | ||
| * destination buffer using the following relationship: | ||
| * <pre> | ||
| * for each xy : 0 <= x,y < w,h { | ||
| * int srcpos = y * srcscanelems + x * srcelemsperpixel + srcoff; | ||
| * int dstpos = y * dstscanelems + x * dstelemsperpixel + dstoff; | ||
| * for each j : 0 <= j < srcelemsperpixel { | ||
| * load data from srcbuf.get(srcpos + j); | ||
| * } | ||
| * convert data to destination pixel format | ||
| * for each k : 0 <= k < dstelemsperpixel { | ||
| * store data into dstbuf.put(dstpos + k, pixel data); | ||
| * } | ||
| * } | ||
| * </pre> | ||
| * | ||
| * @param srcbuf the nio buffer containing the source data | ||
| * @param srcoff the absolute location in the buffer of the first source pixel data | ||
| * @param srcscanelems number of logical buffer elements between rows of data in the source; | ||
| * note that the definition of a logical buffer element depends on the implementation, | ||
| * usually this is a byte or an int, but for indexed converters it is a bit | ||
| * @param dstbuf the nio buffer containing the destination data | ||
| * @param dstoff the absolute location in the buffer of the first destination pixel data | ||
| * @param dstscanelems number of buffer elements between rows of data in the destination | ||
| * @param w the number of pixels to process across before moving to the next row | ||
| * @param h the number of rows of pixels to process | ||
| */ | ||
| public void convert(T srcbuf, int srcoff, int srcscanelems, | ||
| U dstbuf, int dstoff, int dstscanelems, | ||
| int w, int h); | ||
|
|
||
| public PixelGetter<T> getGetter(); | ||
| public PixelSetter<U> getSetter(); | ||
| } | ||
| /* | ||
| * Copyright (c) 2012, 2024, Oracle and/or its affiliates. All rights reserved. | ||
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| * | ||
| * This code is free software; you can redistribute it and/or modify it | ||
| * under the terms of the GNU General Public License version 2 only, as | ||
| * published by the Free Software Foundation. Oracle designates this | ||
| * particular file as subject to the "Classpath" exception as provided | ||
| * by Oracle in the LICENSE file that accompanied this code. | ||
| * | ||
| * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| * version 2 for more details (a copy is included in the LICENSE file that | ||
| * accompanied this code). | ||
| * | ||
| * You should have received a copy of the GNU General Public License version | ||
| * 2 along with this work; if not, write to the Free Software Foundation, | ||
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| * | ||
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| * or visit www.oracle.com if you need additional information or have any | ||
| * questions. | ||
| */ | ||
|
|
||
| package com.sun.javafx.image; | ||
|
|
||
| import java.nio.Buffer; | ||
|
|
||
| public interface PixelConverter<T extends Buffer, U extends Buffer> { | ||
| /** | ||
| * Copies a rectangular region of data from the source buffer to the | ||
| * destination buffer using the following relationship: | ||
| * <pre> | ||
| * for each xy : 0 <= x,y < w,h { | ||
| * int srcpos = y * srcscanelems + x * srcelemsperpixel + srcoff; | ||
| * int dstpos = y * dstscanelems + x * dstelemsperpixel + dstoff; | ||
| * for each j : 0 <= j < srcelemsperpixel { | ||
| * load data from srcbuf.get(srcpos + j); | ||
| * } | ||
| * convert data to destination pixel format | ||
| * for each k : 0 <= k < dstelemsperpixel { | ||
| * store data into dstbuf.put(dstpos + k, pixel data); | ||
| * } | ||
| * } | ||
| * </pre> | ||
| * | ||
| * @param srcbuf the nio buffer containing the source data | ||
| * @param srcoff the absolute location in the buffer of the first source pixel data | ||
| * @param srcscanelems number of logical buffer elements between rows of data in the source; | ||
| * note that the definition of a logical buffer element depends on the implementation, | ||
| * usually this is a byte or an int, but for indexed converters it is a bit | ||
| * @param dstbuf the nio buffer containing the destination data | ||
| * @param dstoff the absolute location in the buffer of the first destination pixel data | ||
| * @param dstscanelems number of buffer elements between rows of data in the destination | ||
| * @param w the number of pixels to process across before moving to the next row | ||
| * @param h the number of rows of pixels to process | ||
| */ | ||
| public void convert(T srcbuf, int srcoff, int srcscanelems, | ||
| U dstbuf, int dstoff, int dstscanelems, | ||
| int w, int h); | ||
|
|
||
| public PixelGetter<T> getGetter(); | ||
| public PixelSetter<U> getSetter(); | ||
| } |