268 lines
6.8 KiB
Smali
268 lines
6.8 KiB
Smali
.class public final Lcom/google/zxing/common/reedsolomon/ReedSolomonEncoder;
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.super Ljava/lang/Object;
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.source "ReedSolomonEncoder.java"
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# instance fields
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.field private final cachedGenerators:Ljava/util/List;
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.annotation system Ldalvik/annotation/Signature;
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value = {
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"Ljava/util/List<",
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"Lcom/google/zxing/common/reedsolomon/GenericGFPoly;",
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">;"
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}
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.end annotation
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.end field
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.field private final field:Lcom/google/zxing/common/reedsolomon/GenericGF;
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# direct methods
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.method public constructor <init>(Lcom/google/zxing/common/reedsolomon/GenericGF;)V
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.locals 5
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.line 1
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invoke-direct {p0}, Ljava/lang/Object;-><init>()V
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.line 2
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sget-object v0, Lcom/google/zxing/common/reedsolomon/GenericGF;->QR_CODE_FIELD_256:Lcom/google/zxing/common/reedsolomon/GenericGF;
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invoke-virtual {v0, p1}, Ljava/lang/Object;->equals(Ljava/lang/Object;)Z
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move-result v0
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if-eqz v0, :cond_0
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.line 3
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iput-object p1, p0, Lcom/google/zxing/common/reedsolomon/ReedSolomonEncoder;->field:Lcom/google/zxing/common/reedsolomon/GenericGF;
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.line 4
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new-instance v0, Ljava/util/ArrayList;
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invoke-direct {v0}, Ljava/util/ArrayList;-><init>()V
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iput-object v0, p0, Lcom/google/zxing/common/reedsolomon/ReedSolomonEncoder;->cachedGenerators:Ljava/util/List;
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.line 5
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new-instance v1, Lcom/google/zxing/common/reedsolomon/GenericGFPoly;
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const/4 v2, 0x1
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new-array v3, v2, [I
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const/4 v4, 0x0
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aput v2, v3, v4
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invoke-direct {v1, p1, v3}, Lcom/google/zxing/common/reedsolomon/GenericGFPoly;-><init>(Lcom/google/zxing/common/reedsolomon/GenericGF;[I)V
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invoke-interface {v0, v1}, Ljava/util/List;->add(Ljava/lang/Object;)Z
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return-void
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.line 6
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:cond_0
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new-instance p1, Ljava/lang/IllegalArgumentException;
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const-string v0, "Only QR Code is supported at this time"
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invoke-direct {p1, v0}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V
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throw p1
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.end method
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.method private buildGenerator(I)Lcom/google/zxing/common/reedsolomon/GenericGFPoly;
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.locals 7
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.line 1
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iget-object v0, p0, Lcom/google/zxing/common/reedsolomon/ReedSolomonEncoder;->cachedGenerators:Ljava/util/List;
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invoke-interface {v0}, Ljava/util/List;->size()I
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move-result v0
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if-lt p1, v0, :cond_1
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.line 2
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iget-object v0, p0, Lcom/google/zxing/common/reedsolomon/ReedSolomonEncoder;->cachedGenerators:Ljava/util/List;
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invoke-interface {v0}, Ljava/util/List;->size()I
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move-result v1
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const/4 v2, 0x1
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sub-int/2addr v1, v2
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invoke-interface {v0, v1}, Ljava/util/List;->get(I)Ljava/lang/Object;
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move-result-object v0
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check-cast v0, Lcom/google/zxing/common/reedsolomon/GenericGFPoly;
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.line 3
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iget-object v1, p0, Lcom/google/zxing/common/reedsolomon/ReedSolomonEncoder;->cachedGenerators:Ljava/util/List;
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invoke-interface {v1}, Ljava/util/List;->size()I
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move-result v1
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:goto_0
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if-le v1, p1, :cond_0
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goto :goto_1
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.line 4
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:cond_0
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new-instance v3, Lcom/google/zxing/common/reedsolomon/GenericGFPoly;
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iget-object v4, p0, Lcom/google/zxing/common/reedsolomon/ReedSolomonEncoder;->field:Lcom/google/zxing/common/reedsolomon/GenericGF;
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const/4 v5, 0x2
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new-array v5, v5, [I
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const/4 v6, 0x0
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aput v2, v5, v6
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add-int/lit8 v6, v1, -0x1
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invoke-virtual {v4, v6}, Lcom/google/zxing/common/reedsolomon/GenericGF;->exp(I)I
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move-result v6
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aput v6, v5, v2
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invoke-direct {v3, v4, v5}, Lcom/google/zxing/common/reedsolomon/GenericGFPoly;-><init>(Lcom/google/zxing/common/reedsolomon/GenericGF;[I)V
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invoke-virtual {v0, v3}, Lcom/google/zxing/common/reedsolomon/GenericGFPoly;->multiply(Lcom/google/zxing/common/reedsolomon/GenericGFPoly;)Lcom/google/zxing/common/reedsolomon/GenericGFPoly;
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move-result-object v0
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.line 5
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iget-object v3, p0, Lcom/google/zxing/common/reedsolomon/ReedSolomonEncoder;->cachedGenerators:Ljava/util/List;
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invoke-interface {v3, v0}, Ljava/util/List;->add(Ljava/lang/Object;)Z
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add-int/lit8 v1, v1, 0x1
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goto :goto_0
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.line 6
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:cond_1
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:goto_1
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iget-object v0, p0, Lcom/google/zxing/common/reedsolomon/ReedSolomonEncoder;->cachedGenerators:Ljava/util/List;
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invoke-interface {v0, p1}, Ljava/util/List;->get(I)Ljava/lang/Object;
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move-result-object p1
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check-cast p1, Lcom/google/zxing/common/reedsolomon/GenericGFPoly;
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return-object p1
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.end method
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# virtual methods
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.method public encode([II)V
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.locals 6
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if-eqz p2, :cond_2
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.line 1
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array-length v0, p1
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sub-int/2addr v0, p2
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if-lez v0, :cond_1
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.line 2
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invoke-direct {p0, p2}, Lcom/google/zxing/common/reedsolomon/ReedSolomonEncoder;->buildGenerator(I)Lcom/google/zxing/common/reedsolomon/GenericGFPoly;
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move-result-object v1
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.line 3
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new-array v2, v0, [I
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const/4 v3, 0x0
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.line 4
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invoke-static {p1, v3, v2, v3, v0}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V
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.line 5
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new-instance v4, Lcom/google/zxing/common/reedsolomon/GenericGFPoly;
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iget-object v5, p0, Lcom/google/zxing/common/reedsolomon/ReedSolomonEncoder;->field:Lcom/google/zxing/common/reedsolomon/GenericGF;
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invoke-direct {v4, v5, v2}, Lcom/google/zxing/common/reedsolomon/GenericGFPoly;-><init>(Lcom/google/zxing/common/reedsolomon/GenericGF;[I)V
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const/4 v2, 0x1
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.line 6
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invoke-virtual {v4, p2, v2}, Lcom/google/zxing/common/reedsolomon/GenericGFPoly;->multiplyByMonomial(II)Lcom/google/zxing/common/reedsolomon/GenericGFPoly;
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move-result-object v4
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.line 7
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invoke-virtual {v4, v1}, Lcom/google/zxing/common/reedsolomon/GenericGFPoly;->divide(Lcom/google/zxing/common/reedsolomon/GenericGFPoly;)[Lcom/google/zxing/common/reedsolomon/GenericGFPoly;
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move-result-object v1
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aget-object v1, v1, v2
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.line 8
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invoke-virtual {v1}, Lcom/google/zxing/common/reedsolomon/GenericGFPoly;->getCoefficients()[I
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move-result-object v1
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.line 9
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array-length v2, v1
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sub-int/2addr p2, v2
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move v2, v3
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:goto_0
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if-lt v2, p2, :cond_0
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add-int/2addr v0, p2
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.line 10
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array-length p2, v1
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invoke-static {v1, v3, p1, v0, p2}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V
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return-void
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:cond_0
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add-int v4, v0, v2
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.line 11
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aput v3, p1, v4
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add-int/lit8 v2, v2, 0x1
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goto :goto_0
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.line 12
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:cond_1
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new-instance p1, Ljava/lang/IllegalArgumentException;
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const-string p2, "No data bytes provided"
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invoke-direct {p1, p2}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V
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throw p1
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.line 13
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:cond_2
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new-instance p1, Ljava/lang/IllegalArgumentException;
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const-string p2, "No error correction bytes"
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invoke-direct {p1, p2}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V
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throw p1
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.end method
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