325 lines
6.6 KiB
Smali
325 lines
6.6 KiB
Smali
.class public final Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;
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.super Ljava/lang/Object;
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.source "ModulusGF.java"
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# static fields
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.field public static final PDF417_GF:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;
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# instance fields
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.field private final expTable:[I
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.field private final logTable:[I
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.field private final modulus:I
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.field private final one:Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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.field private final zero:Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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# direct methods
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.method public static constructor <clinit>()V
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.locals 3
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.line 1
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new-instance v0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;
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const/16 v1, 0x3a1
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const/4 v2, 0x3
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invoke-direct {v0, v1, v2}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;-><init>(II)V
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sput-object v0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->PDF417_GF:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;
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return-void
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.end method
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.method public constructor <init>(II)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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iput p1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->modulus:I
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.line 3
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new-array v0, p1, [I
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iput-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->expTable:[I
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.line 4
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new-array v0, p1, [I
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iput-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->logTable:[I
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const/4 v0, 0x0
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const/4 v1, 0x1
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move v2, v0
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move v3, v1
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:goto_0
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if-lt v2, p1, :cond_1
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move p2, v0
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:goto_1
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add-int/lit8 v2, p1, -0x1
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if-lt p2, v2, :cond_0
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.line 5
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new-instance p1, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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new-array p2, v1, [I
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invoke-direct {p1, p0, p2}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;-><init>(Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;[I)V
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iput-object p1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->zero:Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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.line 6
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new-instance p1, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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new-array p2, v1, [I
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aput v1, p2, v0
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invoke-direct {p1, p0, p2}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;-><init>(Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;[I)V
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iput-object p1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->one:Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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return-void
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.line 7
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:cond_0
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iget-object v2, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->logTable:[I
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iget-object v3, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->expTable:[I
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aget v3, v3, p2
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aput p2, v2, v3
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add-int/lit8 p2, p2, 0x1
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goto :goto_1
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.line 8
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:cond_1
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iget-object v4, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->expTable:[I
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aput v3, v4, v2
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mul-int/2addr v3, p2
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.line 9
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rem-int/2addr v3, p1
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add-int/lit8 v2, v2, 0x1
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goto :goto_0
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.end method
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# virtual methods
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.method public add(II)I
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.locals 0
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add-int/2addr p1, p2
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.line 1
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iget p2, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->modulus:I
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rem-int/2addr p1, p2
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return p1
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.end method
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.method public buildMonomial(II)Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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.locals 1
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if-ltz p1, :cond_1
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if-nez p2, :cond_0
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.line 1
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iget-object p1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->zero:Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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return-object p1
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:cond_0
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add-int/lit8 p1, p1, 0x1
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.line 2
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new-array p1, p1, [I
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const/4 v0, 0x0
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.line 3
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aput p2, p1, v0
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.line 4
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new-instance p2, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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invoke-direct {p2, p0, p1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;-><init>(Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;[I)V
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return-object p2
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.line 5
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:cond_1
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new-instance p1, Ljava/lang/IllegalArgumentException;
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invoke-direct {p1}, Ljava/lang/IllegalArgumentException;-><init>()V
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throw p1
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.end method
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.method public exp(I)I
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.locals 1
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.line 1
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iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->expTable:[I
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aget p1, v0, p1
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return p1
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.end method
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.method public getOne()Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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.locals 1
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.line 1
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iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->one:Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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return-object v0
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.end method
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.method public getSize()I
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.locals 1
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.line 1
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iget v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->modulus:I
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return v0
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.end method
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.method public getZero()Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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.locals 1
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.line 1
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iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->zero:Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
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return-object v0
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.end method
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.method public inverse(I)I
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.locals 3
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if-eqz p1, :cond_0
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.line 1
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iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->expTable:[I
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iget v1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->modulus:I
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iget-object v2, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->logTable:[I
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aget p1, v2, p1
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sub-int/2addr v1, p1
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add-int/lit8 v1, v1, -0x1
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aget p1, v0, v1
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return p1
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.line 2
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:cond_0
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new-instance p1, Ljava/lang/ArithmeticException;
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invoke-direct {p1}, Ljava/lang/ArithmeticException;-><init>()V
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throw p1
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.end method
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.method public log(I)I
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.locals 1
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if-eqz p1, :cond_0
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.line 1
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iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->logTable:[I
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aget p1, v0, p1
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return p1
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.line 2
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:cond_0
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new-instance p1, Ljava/lang/IllegalArgumentException;
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invoke-direct {p1}, Ljava/lang/IllegalArgumentException;-><init>()V
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throw p1
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.end method
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.method public multiply(II)I
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.locals 2
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if-eqz p1, :cond_1
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if-nez p2, :cond_0
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goto :goto_0
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.line 1
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:cond_0
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iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->expTable:[I
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iget-object v1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->logTable:[I
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aget p1, v1, p1
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aget p2, v1, p2
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add-int/2addr p1, p2
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iget p2, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->modulus:I
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add-int/lit8 p2, p2, -0x1
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rem-int/2addr p1, p2
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aget p1, v0, p1
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return p1
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:cond_1
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:goto_0
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const/4 p1, 0x0
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return p1
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.end method
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.method public subtract(II)I
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.locals 1
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.line 1
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iget v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->modulus:I
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add-int/2addr p1, v0
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sub-int/2addr p1, p2
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rem-int/2addr p1, v0
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return p1
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.end method
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