| /* |
| * Copyright (c) 2007, 2016, 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 sun.java2d.cmm.lcms; |
| |
| import java.awt.image.BufferedImage; |
| import java.awt.image.ComponentColorModel; |
| import java.awt.image.ComponentSampleModel; |
| import java.awt.image.ColorModel; |
| import java.awt.image.Raster; |
| import java.awt.image.SampleModel; |
| import sun.awt.image.ByteComponentRaster; |
| import sun.awt.image.ShortComponentRaster; |
| import sun.awt.image.IntegerComponentRaster; |
| |
| class LCMSImageLayout { |
| |
| public static int BYTES_SH(int x) { |
| return x; |
| } |
| |
| public static int EXTRA_SH(int x) { |
| return x << 7; |
| } |
| |
| public static int CHANNELS_SH(int x) { |
| return x << 3; |
| } |
| public static final int SWAPFIRST = 1 << 14; |
| public static final int DOSWAP = 1 << 10; |
| public static final int PT_RGB_8 = |
| CHANNELS_SH(3) | BYTES_SH(1); |
| public static final int PT_GRAY_8 = |
| CHANNELS_SH(1) | BYTES_SH(1); |
| public static final int PT_GRAY_16 = |
| CHANNELS_SH(1) | BYTES_SH(2); |
| public static final int PT_RGBA_8 = |
| EXTRA_SH(1) | CHANNELS_SH(3) | BYTES_SH(1); |
| public static final int PT_ARGB_8 = |
| EXTRA_SH(1) | CHANNELS_SH(3) | BYTES_SH(1) | SWAPFIRST; |
| public static final int PT_BGR_8 = |
| DOSWAP | CHANNELS_SH(3) | BYTES_SH(1); |
| public static final int PT_ABGR_8 = |
| DOSWAP | EXTRA_SH(1) | CHANNELS_SH(3) | BYTES_SH(1); |
| public static final int PT_BGRA_8 = EXTRA_SH(1) | CHANNELS_SH(3) |
| | BYTES_SH(1) | DOSWAP | SWAPFIRST; |
| public static final int DT_BYTE = 0; |
| public static final int DT_SHORT = 1; |
| public static final int DT_INT = 2; |
| public static final int DT_DOUBLE = 3; |
| boolean isIntPacked = false; |
| int pixelType; |
| int dataType; |
| int width; |
| int height; |
| int nextRowOffset; |
| private int nextPixelOffset; |
| int offset; |
| |
| /* This flag indicates whether the image can be processed |
| * at once by doTransfrom() native call. Otherwise, the |
| * image is processed scan by scan. |
| */ |
| private boolean imageAtOnce = false; |
| Object dataArray; |
| |
| private int dataArrayLength; /* in bytes */ |
| |
| private LCMSImageLayout(int np, int pixelType, int pixelSize) |
| throws ImageLayoutException |
| { |
| this.pixelType = pixelType; |
| width = np; |
| height = 1; |
| nextPixelOffset = pixelSize; |
| nextRowOffset = safeMult(pixelSize, np); |
| offset = 0; |
| } |
| |
| private LCMSImageLayout(int width, int height, int pixelType, |
| int pixelSize) |
| throws ImageLayoutException |
| { |
| this.pixelType = pixelType; |
| this.width = width; |
| this.height = height; |
| nextPixelOffset = pixelSize; |
| nextRowOffset = safeMult(pixelSize, width); |
| offset = 0; |
| } |
| |
| |
| public LCMSImageLayout(byte[] data, int np, int pixelType, int pixelSize) |
| throws ImageLayoutException |
| { |
| this(np, pixelType, pixelSize); |
| dataType = DT_BYTE; |
| dataArray = data; |
| dataArrayLength = data.length; |
| |
| verify(); |
| } |
| |
| public LCMSImageLayout(short[] data, int np, int pixelType, int pixelSize) |
| throws ImageLayoutException |
| { |
| this(np, pixelType, pixelSize); |
| dataType = DT_SHORT; |
| dataArray = data; |
| dataArrayLength = 2 * data.length; |
| |
| verify(); |
| } |
| |
| public LCMSImageLayout(int[] data, int np, int pixelType, int pixelSize) |
| throws ImageLayoutException |
| { |
| this(np, pixelType, pixelSize); |
| dataType = DT_INT; |
| dataArray = data; |
| dataArrayLength = 4 * data.length; |
| |
| verify(); |
| } |
| |
| public LCMSImageLayout(double[] data, int np, int pixelType, int pixelSize) |
| throws ImageLayoutException |
| { |
| this(np, pixelType, pixelSize); |
| dataType = DT_DOUBLE; |
| dataArray = data; |
| dataArrayLength = 8 * data.length; |
| |
| verify(); |
| } |
| |
| private LCMSImageLayout() { |
| } |
| |
| /* This method creates a layout object for given image. |
| * Returns null if the image is not supported by current implementation. |
| */ |
| public static LCMSImageLayout createImageLayout(BufferedImage image) throws ImageLayoutException { |
| LCMSImageLayout l = new LCMSImageLayout(); |
| |
| switch (image.getType()) { |
| case BufferedImage.TYPE_INT_RGB: |
| l.pixelType = PT_ARGB_8; |
| l.isIntPacked = true; |
| break; |
| case BufferedImage.TYPE_INT_ARGB: |
| l.pixelType = PT_ARGB_8; |
| l.isIntPacked = true; |
| break; |
| case BufferedImage.TYPE_INT_BGR: |
| l.pixelType = PT_ABGR_8; |
| l.isIntPacked = true; |
| break; |
| case BufferedImage.TYPE_3BYTE_BGR: |
| l.pixelType = PT_BGR_8; |
| break; |
| case BufferedImage.TYPE_4BYTE_ABGR: |
| l.pixelType = PT_ABGR_8; |
| break; |
| case BufferedImage.TYPE_BYTE_GRAY: |
| l.pixelType = PT_GRAY_8; |
| break; |
| case BufferedImage.TYPE_USHORT_GRAY: |
| l.pixelType = PT_GRAY_16; |
| break; |
| default: |
| /* ColorConvertOp creates component images as |
| * default destination, so this kind of images |
| * has to be supported. |
| */ |
| ColorModel cm = image.getColorModel(); |
| if (cm instanceof ComponentColorModel) { |
| ComponentColorModel ccm = (ComponentColorModel) cm; |
| |
| // verify whether the component size is fine |
| int[] cs = ccm.getComponentSize(); |
| for (int s : cs) { |
| if (s != 8) { |
| return null; |
| } |
| } |
| |
| return createImageLayout(image.getRaster()); |
| |
| } |
| return null; |
| } |
| |
| l.width = image.getWidth(); |
| l.height = image.getHeight(); |
| |
| switch (image.getType()) { |
| case BufferedImage.TYPE_INT_RGB: |
| case BufferedImage.TYPE_INT_ARGB: |
| case BufferedImage.TYPE_INT_BGR: |
| do { |
| IntegerComponentRaster intRaster = (IntegerComponentRaster) |
| image.getRaster(); |
| l.nextRowOffset = safeMult(4, intRaster.getScanlineStride()); |
| l.nextPixelOffset = safeMult(4, intRaster.getPixelStride()); |
| l.offset = safeMult(4, intRaster.getDataOffset(0)); |
| l.dataArray = intRaster.getDataStorage(); |
| l.dataArrayLength = 4 * intRaster.getDataStorage().length; |
| l.dataType = DT_INT; |
| |
| if (l.nextRowOffset == l.width * 4 * intRaster.getPixelStride()) { |
| l.imageAtOnce = true; |
| } |
| } while (false); |
| break; |
| |
| case BufferedImage.TYPE_3BYTE_BGR: |
| case BufferedImage.TYPE_4BYTE_ABGR: |
| do { |
| ByteComponentRaster byteRaster = (ByteComponentRaster) |
| image.getRaster(); |
| l.nextRowOffset = byteRaster.getScanlineStride(); |
| l.nextPixelOffset = byteRaster.getPixelStride(); |
| |
| int firstBand = image.getSampleModel().getNumBands() - 1; |
| l.offset = byteRaster.getDataOffset(firstBand); |
| l.dataArray = byteRaster.getDataStorage(); |
| l.dataArrayLength = byteRaster.getDataStorage().length; |
| l.dataType = DT_BYTE; |
| if (l.nextRowOffset == l.width * byteRaster.getPixelStride()) { |
| l.imageAtOnce = true; |
| } |
| } while (false); |
| break; |
| |
| case BufferedImage.TYPE_BYTE_GRAY: |
| do { |
| ByteComponentRaster byteRaster = (ByteComponentRaster) |
| image.getRaster(); |
| l.nextRowOffset = byteRaster.getScanlineStride(); |
| l.nextPixelOffset = byteRaster.getPixelStride(); |
| |
| l.dataArrayLength = byteRaster.getDataStorage().length; |
| l.offset = byteRaster.getDataOffset(0); |
| l.dataArray = byteRaster.getDataStorage(); |
| l.dataType = DT_BYTE; |
| |
| if (l.nextRowOffset == l.width * byteRaster.getPixelStride()) { |
| l.imageAtOnce = true; |
| } |
| } while (false); |
| break; |
| |
| case BufferedImage.TYPE_USHORT_GRAY: |
| do { |
| ShortComponentRaster shortRaster = (ShortComponentRaster) |
| image.getRaster(); |
| l.nextRowOffset = safeMult(2, shortRaster.getScanlineStride()); |
| l.nextPixelOffset = safeMult(2, shortRaster.getPixelStride()); |
| |
| l.offset = safeMult(2, shortRaster.getDataOffset(0)); |
| l.dataArray = shortRaster.getDataStorage(); |
| l.dataArrayLength = 2 * shortRaster.getDataStorage().length; |
| l.dataType = DT_SHORT; |
| |
| if (l.nextRowOffset == l.width * 2 * shortRaster.getPixelStride()) { |
| l.imageAtOnce = true; |
| } |
| } while (false); |
| break; |
| default: |
| return null; |
| } |
| l.verify(); |
| return l; |
| } |
| |
| private static enum BandOrder { |
| DIRECT, |
| INVERTED, |
| ARBITRARY, |
| UNKNOWN; |
| |
| public static BandOrder getBandOrder(int[] bandOffsets) { |
| BandOrder order = UNKNOWN; |
| |
| int numBands = bandOffsets.length; |
| |
| for (int i = 0; (order != ARBITRARY) && (i < bandOffsets.length); i++) { |
| switch (order) { |
| case UNKNOWN: |
| if (bandOffsets[i] == i) { |
| order = DIRECT; |
| } else if (bandOffsets[i] == (numBands - 1 - i)) { |
| order = INVERTED; |
| } else { |
| order = ARBITRARY; |
| } |
| break; |
| case DIRECT: |
| if (bandOffsets[i] != i) { |
| order = ARBITRARY; |
| } |
| break; |
| case INVERTED: |
| if (bandOffsets[i] != (numBands - 1 - i)) { |
| order = ARBITRARY; |
| } |
| break; |
| } |
| } |
| return order; |
| } |
| } |
| |
| private void verify() throws ImageLayoutException { |
| |
| if (offset < 0 || offset >= dataArrayLength) { |
| throw new ImageLayoutException("Invalid image layout"); |
| } |
| |
| if (nextPixelOffset != getBytesPerPixel(pixelType)) { |
| throw new ImageLayoutException("Invalid image layout"); |
| } |
| |
| int lastScanOffset = safeMult(nextRowOffset, (height - 1)); |
| |
| int lastPixelOffset = safeMult(nextPixelOffset, (width -1 )); |
| |
| lastPixelOffset = safeAdd(lastPixelOffset, lastScanOffset); |
| |
| int off = safeAdd(offset, lastPixelOffset); |
| |
| if (off < 0 || off >= dataArrayLength) { |
| throw new ImageLayoutException("Invalid image layout"); |
| } |
| } |
| |
| static int safeAdd(int a, int b) throws ImageLayoutException { |
| long res = a; |
| res += b; |
| if (res < Integer.MIN_VALUE || res > Integer.MAX_VALUE) { |
| throw new ImageLayoutException("Invalid image layout"); |
| } |
| return (int)res; |
| } |
| |
| static int safeMult(int a, int b) throws ImageLayoutException { |
| long res = a; |
| res *= b; |
| if (res < Integer.MIN_VALUE || res > Integer.MAX_VALUE) { |
| throw new ImageLayoutException("Invalid image layout"); |
| } |
| return (int)res; |
| } |
| |
| @SuppressWarnings("serial") // JDK-implementation class |
| public static class ImageLayoutException extends Exception { |
| public ImageLayoutException(String message) { |
| super(message); |
| } |
| } |
| public static LCMSImageLayout createImageLayout(Raster r) { |
| LCMSImageLayout l = new LCMSImageLayout(); |
| if (r instanceof ByteComponentRaster && |
| r.getSampleModel() instanceof ComponentSampleModel) { |
| ByteComponentRaster br = (ByteComponentRaster)r; |
| |
| ComponentSampleModel csm = (ComponentSampleModel)r.getSampleModel(); |
| |
| l.pixelType = CHANNELS_SH(br.getNumBands()) | BYTES_SH(1); |
| |
| int[] bandOffsets = csm.getBandOffsets(); |
| BandOrder order = BandOrder.getBandOrder(bandOffsets); |
| |
| int firstBand = 0; |
| switch (order) { |
| case INVERTED: |
| l.pixelType |= DOSWAP; |
| firstBand = csm.getNumBands() - 1; |
| break; |
| case DIRECT: |
| // do nothing |
| break; |
| default: |
| // unable to create the image layout; |
| return null; |
| } |
| |
| l.nextRowOffset = br.getScanlineStride(); |
| l.nextPixelOffset = br.getPixelStride(); |
| |
| l.offset = br.getDataOffset(firstBand); |
| l.dataArray = br.getDataStorage(); |
| l.dataType = DT_BYTE; |
| |
| l.width = br.getWidth(); |
| l.height = br.getHeight(); |
| |
| if (l.nextRowOffset == l.width * br.getPixelStride()) { |
| l.imageAtOnce = true; |
| } |
| return l; |
| } |
| return null; |
| } |
| |
| /** |
| * Derives number of bytes per pixel from the pixel format. |
| * Following bit fields are used here: |
| * [0..2] - bytes per sample |
| * [3..6] - number of color samples per pixel |
| * [7..9] - number of non-color samples per pixel |
| * |
| * A complete description of the pixel format can be found |
| * here: lcms2.h, lines 651 - 667. |
| * |
| * @param pixelType pixel format in lcms2 notation. |
| * @return number of bytes per pixel for given pixel format. |
| */ |
| private static int getBytesPerPixel(int pixelType) { |
| int bytesPerSample = (0x7 & pixelType); |
| int colorSamplesPerPixel = 0xF & (pixelType >> 3); |
| int extraSamplesPerPixel = 0x7 & (pixelType >> 7); |
| |
| return bytesPerSample * (colorSamplesPerPixel + extraSamplesPerPixel); |
| } |
| } |