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/*
* Copyright 2002-2012 Drew Noakes
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* More information about this project is available at:
*
* http://drewnoakes.com/code/exif/
* http://code.google.com/p/metadata-extractor/
*/
package com.drew.metadata.icc;
import com.drew.lang.BufferBoundsException;
import com.drew.lang.BufferReader;
import com.drew.lang.annotations.NotNull;
import com.drew.metadata.Directory;
import com.drew.metadata.Metadata;
import com.drew.metadata.MetadataReader;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;
/**
* Reads an ICC profile.
* <ul>
* <li>http://en.wikipedia.org/wiki/ICC_profile</li>
* <li>http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/ICC_Profile.html</li>
* </ul>
*
* @author Yuri Binev, Drew Noakes
*/
public class IccReader implements MetadataReader
{
public void extract(@NotNull final BufferReader reader, @NotNull final Metadata metadata)
{
final IccDirectory directory = metadata.getOrCreateDirectory(IccDirectory.class);
try {
directory.setInt(IccDirectory.TAG_ICC_PROFILE_BYTE_COUNT, reader.getInt32(IccDirectory.TAG_ICC_PROFILE_BYTE_COUNT));
// For these tags, the int value of the tag is in fact it's offset within the buffer.
set4ByteString(directory, IccDirectory.TAG_ICC_CMM_TYPE, reader);
setInt32(directory, IccDirectory.TAG_ICC_PROFILE_VERSION, reader);
set4ByteString(directory, IccDirectory.TAG_ICC_PROFILE_CLASS, reader);
set4ByteString(directory, IccDirectory.TAG_ICC_COLOR_SPACE, reader);
set4ByteString(directory, IccDirectory.TAG_ICC_PROFILE_CONNECTION_SPACE, reader);
setDate(directory, IccDirectory.TAG_ICC_PROFILE_DATETIME, reader);
set4ByteString(directory, IccDirectory.TAG_ICC_SIGNATURE, reader);
set4ByteString(directory, IccDirectory.TAG_ICC_PLATFORM, reader);
setInt32(directory, IccDirectory.TAG_ICC_CMM_FLAGS, reader);
set4ByteString(directory, IccDirectory.TAG_ICC_DEVICE_MAKE, reader);
int temp = reader.getInt32(IccDirectory.TAG_ICC_DEVICE_MODEL);
if (temp != 0) {
if (temp <= 0x20202020)
directory.setInt(IccDirectory.TAG_ICC_DEVICE_MODEL, temp);
else
directory.setString(IccDirectory.TAG_ICC_DEVICE_MODEL, getStringFromInt32(temp));
}
setInt32(directory, IccDirectory.TAG_ICC_RENDERING_INTENT, reader);
setInt64(directory, IccDirectory.TAG_ICC_DEVICE_ATTR, reader);
float[] xyz = new float[] {
reader.getS15Fixed16(IccDirectory.TAG_ICC_XYZ_VALUES),
reader.getS15Fixed16(IccDirectory.TAG_ICC_XYZ_VALUES + 4),
reader.getS15Fixed16(IccDirectory.TAG_ICC_XYZ_VALUES + 8)
};
directory.setObject(IccDirectory.TAG_ICC_XYZ_VALUES, xyz);
// Process 'ICC tags'
int tagCount = reader.getInt32(IccDirectory.TAG_ICC_TAG_COUNT);
directory.setInt(IccDirectory.TAG_ICC_TAG_COUNT, tagCount);
for (int i = 0; i < tagCount; i++) {
int pos = 128 + 4 + i*12;
int tagType = reader.getInt32(pos);
int tagPtr = reader.getInt32(pos + 4);
int tagLen = reader.getInt32(pos + 8);
byte[] b = reader.getBytes(tagPtr, tagLen);
directory.setByteArray(tagType, b);
}
} catch (BufferBoundsException e) {
directory.addError(String.format("Reading ICC Header %s:%s", e.getClass().getSimpleName(), e.getMessage()));
}
}
private void set4ByteString(@NotNull Directory directory, int tagType, @NotNull BufferReader reader) throws BufferBoundsException
{
int i = reader.getInt32(tagType);
if (i != 0)
directory.setString(tagType, getStringFromInt32(i));
}
private void setInt32(@NotNull Directory directory, int tagType, @NotNull BufferReader reader) throws BufferBoundsException
{
int i = reader.getInt32(tagType);
if (i != 0)
directory.setInt(tagType, i);
}
@SuppressWarnings({ "SameParameterValue" })
private void setInt64(@NotNull Directory directory, int tagType, @NotNull BufferReader reader) throws BufferBoundsException
{
long l = reader.getInt64(tagType);
if (l != 0)
directory.setLong(tagType, l);
}
@SuppressWarnings({ "SameParameterValue" })
private void setDate(@NotNull final IccDirectory directory, final int tagType, @NotNull BufferReader reader) throws BufferBoundsException
{
final int y = reader.getUInt16(tagType);
final int m = reader.getUInt16(tagType + 2);
final int d = reader.getUInt16(tagType + 4);
final int h = reader.getUInt16(tagType + 6);
final int M = reader.getUInt16(tagType + 8);
final int s = reader.getUInt16(tagType + 10);
// final Date value = new Date(Date.UTC(y - 1900, m - 1, d, h, M, s));
final Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
calendar.set(y, m, d, h, M, s);
final Date value = calendar.getTime();
directory.setDate(tagType, value);
}
@NotNull
public static String getStringFromInt32(int d)
{
// MSB
byte[] b = new byte[] {
(byte)((d & 0xFF000000) >> 24),
(byte)((d & 0x00FF0000) >> 16),
(byte)((d & 0x0000FF00) >> 8),
(byte)((d & 0x000000FF))
};
return new String(b);
}
}
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