59 lines
1.9 KiB
Java
59 lines
1.9 KiB
Java
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package o;
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import com.drew.imaging.png.PngProcessingException;
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import com.google.common.base.Ascii;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashSet;
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import java.util.Set;
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/* loaded from: classes.dex */
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public final class VFt {
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private static final byte[] e = {-119, 80, 78, 71, 13, 10, Ascii.SUB, 10};
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public static Iterable<xIZ> b(Eaa eaa, Set<nFt> set) throws PngProcessingException, IOException {
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byte[] bArr;
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eaa.e = true;
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byte[] bArr2 = e;
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if (!Arrays.equals(bArr2, eaa.a(bArr2.length))) {
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throw new PngProcessingException("PNG signature mismatch");
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}
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ArrayList arrayList = new ArrayList();
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HashSet hashSet = new HashSet();
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boolean z = false;
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boolean z2 = false;
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while (!z) {
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int a = eaa.a();
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if (a < 0) {
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throw new PngProcessingException("PNG chunk length exceeds maximum");
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}
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nFt nft = new nFt(eaa.a(4));
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boolean z3 = set == null || set.contains(nft);
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if (z3) {
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bArr = eaa.a(a);
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} else {
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eaa.b(a);
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bArr = null;
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}
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eaa.b(4L);
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if (z3 && hashSet.contains(nft) && !nft.q) {
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throw new PngProcessingException(String.format("Observed multiple instances of PNG chunk '%s', for which multiples are not allowed", nft));
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}
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if (nft.equals(nFt.b)) {
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z2 = true;
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} else if (!z2) {
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throw new PngProcessingException(String.format("First chunk should be '%s', but '%s' was observed", nFt.b, nft));
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}
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if (nft.equals(nFt.c)) {
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z = true;
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}
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if (z3) {
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arrayList.add(new xIZ(nft, bArr));
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}
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hashSet.add(nft);
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}
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return arrayList;
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}
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}
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