| /* |
| * Copyright (c) 2007, 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.Graphics2D; |
| import java.awt.image.BufferedImage; |
| import java.awt.image.ComponentColorModel; |
| import java.awt.image.Raster; |
| import java.awt.image.WritableRaster; |
| import java.awt.image.SinglePixelPackedSampleModel; |
| import java.awt.image.ComponentSampleModel; |
| import java.awt.image.DataBuffer; |
| import java.awt.image.DataBufferByte; |
| import java.awt.image.DataBufferUShort; |
| import java.awt.image.DataBufferInt; |
| import java.awt.image.ColorModel; |
| 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; |
| |
| 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(); |
| } |
| |
| public LCMSImageLayout(BufferedImage image) throws ImageLayoutException { |
| ShortComponentRaster shortRaster; |
| IntegerComponentRaster intRaster; |
| ByteComponentRaster byteRaster; |
| switch (image.getType()) { |
| case BufferedImage.TYPE_INT_RGB: |
| pixelType = PT_ARGB_8; |
| isIntPacked = true; |
| break; |
| case BufferedImage.TYPE_INT_ARGB: |
| pixelType = PT_ARGB_8; |
| isIntPacked = true; |
| break; |
| case BufferedImage.TYPE_INT_BGR: |
| pixelType = PT_ABGR_8; |
| isIntPacked = true; |
| break; |
| case BufferedImage.TYPE_3BYTE_BGR: |
| pixelType = PT_BGR_8; |
| break; |
| case BufferedImage.TYPE_4BYTE_ABGR: |
| pixelType = PT_ABGR_8; |
| break; |
| case BufferedImage.TYPE_BYTE_GRAY: |
| pixelType = PT_GRAY_8; |
| break; |
| case BufferedImage.TYPE_USHORT_GRAY: |
| pixelType = PT_GRAY_16; |
| break; |
| default: |
| // TODO: Add support for some images having |
| // SinglePixelPackedModel and ComponentSampleModel |
| throw new IllegalArgumentException( |
| "CMMImageLayout - bad image type passed to constructor"); |
| } |
| |
| width = image.getWidth(); |
| height = image.getHeight(); |
| |
| switch (image.getType()) { |
| case BufferedImage.TYPE_INT_RGB: |
| case BufferedImage.TYPE_INT_ARGB: |
| case BufferedImage.TYPE_INT_BGR: |
| intRaster = (IntegerComponentRaster)image.getRaster(); |
| |
| nextRowOffset = safeMult(4, intRaster.getScanlineStride()); |
| nextPixelOffset = safeMult(4, intRaster.getPixelStride()); |
| |
| offset = safeMult(4, intRaster.getDataOffset(0)); |
| |
| dataArray = intRaster.getDataStorage(); |
| dataArrayLength = 4 * intRaster.getDataStorage().length; |
| dataType = DT_INT; |
| break; |
| |
| case BufferedImage.TYPE_3BYTE_BGR: |
| case BufferedImage.TYPE_4BYTE_ABGR: |
| byteRaster = (ByteComponentRaster)image.getRaster(); |
| nextRowOffset = byteRaster.getScanlineStride(); |
| nextPixelOffset = byteRaster.getPixelStride(); |
| |
| int firstBand = image.getSampleModel().getNumBands() - 1; |
| offset = byteRaster.getDataOffset(firstBand); |
| dataArray = byteRaster.getDataStorage(); |
| dataArrayLength = byteRaster.getDataStorage().length; |
| dataType = DT_BYTE; |
| break; |
| |
| case BufferedImage.TYPE_BYTE_GRAY: |
| byteRaster = (ByteComponentRaster)image.getRaster(); |
| nextRowOffset = byteRaster.getScanlineStride(); |
| nextPixelOffset = byteRaster.getPixelStride(); |
| |
| offset = byteRaster.getDataOffset(0); |
| dataArray = byteRaster.getDataStorage(); |
| dataArrayLength = byteRaster.getDataStorage().length; |
| dataType = DT_BYTE; |
| break; |
| |
| case BufferedImage.TYPE_USHORT_GRAY: |
| shortRaster = (ShortComponentRaster)image.getRaster(); |
| nextRowOffset = safeMult(2, shortRaster.getScanlineStride()); |
| nextPixelOffset = safeMult(2, shortRaster.getPixelStride()); |
| |
| offset = safeMult(2, shortRaster.getDataOffset(0)); |
| dataArray = shortRaster.getDataStorage(); |
| dataArrayLength = 2 * shortRaster.getDataStorage().length; |
| dataType = DT_SHORT; |
| break; |
| } |
| verify(); |
| } |
| |
| public static boolean isSupported(BufferedImage image) { |
| switch (image.getType()) { |
| case BufferedImage.TYPE_INT_RGB: |
| case BufferedImage.TYPE_INT_ARGB: |
| case BufferedImage.TYPE_INT_BGR: |
| case BufferedImage.TYPE_3BYTE_BGR: |
| case BufferedImage.TYPE_4BYTE_ABGR: |
| case BufferedImage.TYPE_BYTE_GRAY: |
| case BufferedImage.TYPE_USHORT_GRAY: |
| return true; |
| } |
| return false; |
| } |
| |
| 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; |
| } |
| |
| public static class ImageLayoutException extends Exception { |
| public ImageLayoutException(String message) { |
| super(message); |
| } |
| } |
| |
| /** |
| * 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); |
| } |
| } |
