1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/**
* @author Oleg V. Khaschansky
* @version $Revision$
*/
package org.apache.harmony.awt.gl.color;
import java.awt.color.ICC_Profile;
import org.apache.harmony.awt.gl.color.NativeCMM;
/**
* This class encapsulates native ICC transform object, is responsible for its
* creation, destruction and passing its handle to the native CMM.
*/
public class ICC_Transform {
private long transformHandle;
private int numInputChannels;
private int numOutputChannels;
private ICC_Profile src;
private ICC_Profile dst;
/**
* @return Returns the number of input channels.
*/
public int getNumInputChannels() {
return numInputChannels;
}
/**
* @return Returns the number of output channels.
*/
public int getNumOutputChannels() {
return numOutputChannels;
}
/**
* @return Returns the dst.
*/
public ICC_Profile getDst() {
return dst;
}
/**
* @return Returns the src.
*/
public ICC_Profile getSrc() {
return src;
}
/**
* Constructs a multiprofile ICC transform
* @param profiles - list of ICC profiles
* @param renderIntents - only hints for CMM
*/
public ICC_Transform(ICC_Profile[] profiles, int[] renderIntents) {
int numProfiles = profiles.length;
long[] profileHandles = new long[numProfiles];
for (int i=0; i<numProfiles; i++) {
profileHandles[i] = NativeCMM.getHandle(profiles[i]);
}
transformHandle = NativeCMM.cmmCreateMultiprofileTransform(
profileHandles,
renderIntents);
src = profiles[0];
dst = profiles[numProfiles-1];
numInputChannels = src.getNumComponents();
numOutputChannels = dst.getNumComponents();
}
/**
* This constructor is able to set intents by default
* @param profiles - list of ICC profiles
*/
public ICC_Transform(ICC_Profile[] profiles) {
int numProfiles = profiles.length;
int[] renderingIntents = new int[numProfiles];
// Default is perceptual
int currRenderingIntent = ICC_Profile.icPerceptual;
// render as colorimetric for output device
if (profiles[0].getProfileClass() == ICC_Profile.CLASS_OUTPUT) {
currRenderingIntent = ICC_Profile.icRelativeColorimetric;
}
// get the transforms from each profile
for (int i = 0; i < numProfiles; i++) {
// first or last profile cannot be abstract
// if profile is abstract, the only possible way is
// use AToB0Tag (perceptual), see ICC spec
if (i != 0 &&
i != numProfiles - 1 &&
profiles[i].getProfileClass() == ICC_Profile.CLASS_ABSTRACT
) {
currRenderingIntent = ICC_Profile.icPerceptual;
}
renderingIntents[i] = currRenderingIntent;
// use current rendering intent
// to select LUT from the next profile (chaining)
currRenderingIntent =
ICC_ProfileHelper.getRenderingIntent(profiles[i]);
}
// Get the profile handles and go ahead
long[] profileHandles = new long[numProfiles];
for (int i=0; i<numProfiles; i++) {
profileHandles[i] = NativeCMM.getHandle(profiles[i]);
}
transformHandle = NativeCMM.cmmCreateMultiprofileTransform(
profileHandles,
renderingIntents);
src = profiles[0];
dst = profiles[numProfiles-1];
numInputChannels = src.getNumComponents();
numOutputChannels = dst.getNumComponents();
}
@Override
protected void finalize() {
if (transformHandle != 0) {
NativeCMM.cmmDeleteTransform(transformHandle);
}
}
/**
* Invokes native color conversion
* @param src - source image format
* @param dst - destination image format
*/
public void translateColors(NativeImageFormat src, NativeImageFormat dst) {
NativeCMM.cmmTranslateColors(transformHandle, src, dst);
}
}
|
