| /* |
| * 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); |
| } |
| } |