FunctionManager.java
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/*
* Decompiled with CFR 0_118.
*
* Could not load the following classes:
* com.adobe.internal.pdftoolkit.core.exceptions.PDFCosParseException
* com.adobe.internal.pdftoolkit.core.exceptions.PDFException
* com.adobe.internal.pdftoolkit.core.exceptions.PDFIOException
* com.adobe.internal.pdftoolkit.core.exceptions.PDFInvalidDocumentException
* com.adobe.internal.pdftoolkit.core.exceptions.PDFRuntimeException
* com.adobe.internal.pdftoolkit.core.exceptions.PDFSecurityException
*/
package com.adobe.internal.pdftoolkit.pdf.graphics.impl;
import com.adobe.internal.pdftoolkit.color.ApplyFunctionInterface;
import com.adobe.internal.pdftoolkit.core.exceptions.PDFCosParseException;
import com.adobe.internal.pdftoolkit.core.exceptions.PDFException;
import com.adobe.internal.pdftoolkit.core.exceptions.PDFIOException;
import com.adobe.internal.pdftoolkit.core.exceptions.PDFInvalidDocumentException;
import com.adobe.internal.pdftoolkit.core.exceptions.PDFRuntimeException;
import com.adobe.internal.pdftoolkit.core.exceptions.PDFSecurityException;
import com.adobe.internal.pdftoolkit.graphicsDOM.utils.GraphicsUtils;
import com.adobe.internal.pdftoolkit.pdf.graphics.PDFFunctionsArray;
import com.adobe.internal.pdftoolkit.pdf.graphics.impl.PostScriptCalculator;
import com.adobe.internal.pdftoolkit.pdf.graphics.impl.PostScriptStack;
import java.util.Arrays;
import java.util.Iterator;
class FunctionManager {
private FunctionManager() {
}
static double[] applyFunction0(double[] inputData, byte[] sampledData, double[] domain, double[] range, double[] decode, double[] encode, double[] size, int bps, int valToBeInterpolated) {
int n = range.length / 2;
double[] result = new double[n];
for (int i = 0; i < inputData.length; ++i) {
inputData[i] = FunctionManager.min(FunctionManager.max(inputData[i], domain[2 * i]), domain[2 * i + 1]);
inputData[i] = FunctionManager.interpolate(inputData[i], domain[2 * i], domain[2 * i + 1], encode[2 * i], encode[2 * i + 1]);
inputData[i] = FunctionManager.min(FunctionManager.max(inputData[i], 0.0), size[i] - 1.0);
}
int pos = n * GraphicsUtils.rint(inputData[0]);
double mult = 1.0;
for (int i2 = 1; i2 < inputData.length; ++i2) {
pos = (int)((double)pos + (mult *= size[i2 - 1]) * (double)n * (double)GraphicsUtils.rint(inputData[i2]));
}
for (int j = 0; j < n; ++j) {
if (sampledData.length > 0) {
result[j] = GraphicsUtils.readNthSample(sampledData, bps, pos + j);
}
if (result[j] < 0.0) {
double[] arrd = result;
int n2 = j;
arrd[n2] = arrd[n2] + 256.0;
}
result[j] = FunctionManager.interpolate(result[j], 0.0, valToBeInterpolated, decode[2 * j], decode[2 * j + 1]);
result[j] = FunctionManager.min(FunctionManager.max(result[j], range[2 * j]), range[2 * j + 1]);
}
return result;
}
static double[] applyFunction2(double[] inputData, double[] C0, double[] C1, double N, int n, double[] range) {
if (N - (double)((int)N) != 0.0 && inputData[0] < 0.0) {
throw new PDFRuntimeException("Input Data " + inputData + " must be non Negative as N " + N + " is not an integer.");
}
if (N < 0.0 && inputData[0] == 0.0) {
throw new PDFRuntimeException("if N " + N + " is negative, no value of input data " + inputData + "may be zero.");
}
if (C0.length != n) {
throw new PDFRuntimeException("The length of the C0 Array shoule be " + n);
}
if (C1.length != n) {
throw new PDFRuntimeException("The length of the C1 Array shoule be " + n);
}
double[] result = new double[n];
for (int i = 0; i < n; ++i) {
double C0i;
double d = range != null ? (C0[i] < range[n * 2 - 2] ? range[n * 2 - 2] : C0[i]) : (C0i = C0[i]);
double C1i = range != null ? (C1[i] > range[n * 2 - 1] ? range[n * 2 - 1] : C1[i]) : C1[i];
result[i] = C0i + Math.pow(inputData[0], N) * (C1i - C0i);
}
return result;
}
static double[] applyFunction3(double[] domain, double[] bounds, double[] encode, double[] inputData, ApplyFunctionInterface[] functionsArray) {
double lowerBound;
double upperBound;
int index;
ApplyFunctionInterface function;
double xdash;
int k = functionsArray.length;
function = null;
if (domain.length != 2) {
throw new PDFRuntimeException("Domain must be of size 2.");
}
lowerBound = 0.0;
upperBound = 0.0;
index = 0;
if (bounds.length > 0) {
if (inputData[0] >= domain[0] && inputData[0] < bounds[0]) {
lowerBound = domain[0];
upperBound = bounds[0];
index = 0;
function = functionsArray[0];
} else if (inputData[0] <= domain[1] && inputData[0] >= bounds[k - 2]) {
lowerBound = bounds[k - 2];
upperBound = domain[1];
index = k - 1;
function = functionsArray[k - 1];
} else {
for (int i = 0; i < k - 2; ++i) {
lowerBound = bounds[i];
upperBound = bounds[i + 1];
if (inputData[0] < lowerBound || inputData[0] >= upperBound) continue;
index = i + 1;
function = functionsArray[i + 1];
break;
}
}
} else {
lowerBound = domain[0];
upperBound = domain[1];
if (inputData[0] >= lowerBound && inputData[0] <= upperBound) {
index = 0;
function = functionsArray[0];
}
}
encode[2 * index] = xdash = FunctionManager.interpolate(inputData[0], lowerBound, upperBound, encode[2 * index], encode[2 * index + 1]);
return function.apply(inputData);
}
static double[] applyFunction4(double[] range, double[] domain, PostScriptCalculator postScriptCalculator, double[] inputData) {
int i;
if (range == null) {
throw new PDFRuntimeException("Required Range Entry is missing.");
}
int size = range.length / 2;
double[] evaluatedData = new double[size];
PostScriptStack<Double> data = new PostScriptStack<Double>();
for (i = 0; i < inputData.length; ++i) {
data.push(inputData[i]);
}
try {
data = postScriptCalculator.evaluate(data);
}
catch (PDFInvalidDocumentException e) {
throw new PDFRuntimeException((PDFException)e);
}
if (data.size() < size) {
throw new PDFRuntimeException("Output of the funtion type 4 should be greater or equal to it's range/2.");
}
for (i = 0; i < evaluatedData.length; ++i) {
evaluatedData[evaluatedData.length - i - 1] = data.pop();
}
return evaluatedData;
}
private static double max(double a, double b) {
return a >= b ? a : b;
}
private static double min(double a, double b) {
return a <= b ? a : b;
}
private static double interpolate(double a, double b, double c, double d, double e) {
double bound = c - b;
if (bound != 0.0) {
return d + (a - b) * ((e - d) / bound);
}
return 0.0;
}
static double[] getDefaultArray(double value, double n) throws PDFCosParseException, PDFIOException, PDFSecurityException {
double[] list = new double[(int)n];
Arrays.fill(list, value);
return list;
}
static ApplyFunctionInterface[] pdfFunctionsArrayToInterfaceArray(PDFFunctionsArray functionsArray) {
Iterator itr = functionsArray.iterator();
ApplyFunctionInterface[] interfaceArray = new ApplyFunctionInterface[functionsArray.size()];
int index = 0;
while (itr.hasNext()) {
interfaceArray[index++] = (ApplyFunctionInterface)itr.next();
}
return interfaceArray;
}
}