ModulusPoly.smali

.class final Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
.super Ljava/lang/Object;
.source "ModulusPoly.java"


# instance fields
.field private final coefficients:[I

.field private final field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;


# direct methods
.method constructor <init>(Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;[I)V
    .registers 7

    .line 28
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 29
    array-length v0, p2

    if-eqz v0, :cond_31

    .line 32
    iput-object p1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    .line 33
    array-length p1, p2

    const/4 v0, 0x1

    if-le p1, v0, :cond_2e

    const/4 v1, 0x0

    .line 34
    aget v2, p2, v1

    if-nez v2, :cond_2e

    const/4 v2, 0x1

    :goto_12
    if-ge v2, p1, :cond_1b

    .line 37
    aget v3, p2, v2

    if-nez v3, :cond_1b

    add-int/lit8 v2, v2, 0x1

    goto :goto_12

    :cond_1b
    if-ne v2, p1, :cond_24

    new-array p1, v0, [I

    aput v1, p1, v1

    .line 41
    iput-object p1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    return-void

    :cond_24
    sub-int/2addr p1, v2

    .line 43
    new-array p1, p1, [I

    iput-object p1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    .line 44
    array-length v0, p1

    invoke-static {p2, v2, p1, v1, v0}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    return-void

    .line 51
    :cond_2e
    iput-object p2, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    return-void

    .line 30
    :cond_31
    new-instance p1, Ljava/lang/IllegalArgumentException;

    invoke-direct {p1}, Ljava/lang/IllegalArgumentException;-><init>()V

    throw p1
.end method


# virtual methods
.method add(Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;)Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
    .registers 10

    .line 105
    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    iget-object v1, p1, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-virtual {v0, v1}, Ljava/lang/Object;->equals(Ljava/lang/Object;)Z

    move-result v0

    if-eqz v0, :cond_4b

    .line 108
    invoke-virtual {p0}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->isZero()Z

    move-result v0

    if-eqz v0, :cond_11

    return-object p1

    .line 111
    :cond_11
    invoke-virtual {p1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->isZero()Z

    move-result v0

    if-eqz v0, :cond_18

    return-object p0

    .line 115
    :cond_18
    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    .line 116
    iget-object p1, p1, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    .line 117
    array-length v1, v0

    array-length v2, p1

    if-le v1, v2, :cond_21

    goto :goto_24

    :cond_21
    move-object v7, v0

    move-object v0, p1

    move-object p1, v7

    .line 122
    :goto_24
    array-length v1, v0

    new-array v1, v1, [I

    .line 123
    array-length v2, v0

    array-length v3, p1

    sub-int/2addr v2, v3

    const/4 v3, 0x0

    .line 125
    invoke-static {v0, v3, v1, v3, v2}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    move v3, v2

    .line 127
    :goto_2f
    array-length v4, v0

    if-ge v3, v4, :cond_43

    .line 128
    iget-object v4, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    sub-int v5, v3, v2

    aget v5, p1, v5

    aget v6, v0, v3

    invoke-virtual {v4, v5, v6}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->add(II)I

    move-result v4

    aput v4, v1, v3

    add-int/lit8 v3, v3, 0x1

    goto :goto_2f

    .line 131
    :cond_43
    new-instance p1, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;

    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-direct {p1, v0, v1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;-><init>(Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;[I)V

    return-object p1

    .line 106
    :cond_4b
    new-instance p1, Ljava/lang/IllegalArgumentException;

    const-string v0, "ModulusPolys do not have same ModulusGF field"

    invoke-direct {p1, v0}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V

    throw p1
.end method

.method evaluateAt(I)I
    .registers 7

    const/4 v0, 0x0

    if-nez p1, :cond_8

    .line 86
    invoke-virtual {p0, v0}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->getCoefficient(I)I

    move-result p1

    return p1

    :cond_8
    const/4 v1, 0x1

    if-ne p1, v1, :cond_1d

    .line 91
    iget-object p1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    array-length v1, p1

    const/4 v2, 0x0

    :goto_f
    if-ge v0, v1, :cond_1c

    aget v3, p1, v0

    .line 92
    iget-object v4, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-virtual {v4, v2, v3}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->add(II)I

    move-result v2

    add-int/lit8 v0, v0, 0x1

    goto :goto_f

    :cond_1c
    return v2

    .line 96
    :cond_1d
    iget-object v2, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    aget v0, v2, v0

    .line 97
    array-length v2, v2

    :goto_22
    if-ge v1, v2, :cond_35

    .line 99
    iget-object v3, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-virtual {v3, p1, v0}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->multiply(II)I

    move-result v0

    iget-object v4, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    aget v4, v4, v1

    invoke-virtual {v3, v0, v4}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->add(II)I

    move-result v0

    add-int/lit8 v1, v1, 0x1

    goto :goto_22

    :cond_35
    return v0
.end method

.method getCoefficient(I)I
    .registers 4

    .line 77
    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    array-length v1, v0

    add-int/lit8 v1, v1, -0x1

    sub-int/2addr v1, p1

    aget p1, v0, v1

    return p1
.end method

.method getCoefficients()[I
    .registers 2

    .line 56
    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    return-object v0
.end method

.method getDegree()I
    .registers 2

    .line 63
    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    array-length v0, v0

    add-int/lit8 v0, v0, -0x1

    return v0
.end method

.method isZero()Z
    .registers 3

    .line 70
    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    const/4 v1, 0x0

    aget v0, v0, v1

    if-nez v0, :cond_9

    const/4 v0, 0x1

    return v0

    :cond_9
    return v1
.end method

.method multiply(I)Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
    .registers 7

    if-nez p1, :cond_9

    .line 176
    iget-object p1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-virtual {p1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->getZero()Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;

    move-result-object p1

    return-object p1

    :cond_9
    const/4 v0, 0x1

    if-ne p1, v0, :cond_d

    return-object p0

    .line 181
    :cond_d
    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    array-length v0, v0

    .line 182
    new-array v1, v0, [I

    const/4 v2, 0x0

    :goto_13
    if-ge v2, v0, :cond_24

    .line 184
    iget-object v3, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    iget-object v4, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    aget v4, v4, v2

    invoke-virtual {v3, v4, p1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->multiply(II)I

    move-result v3

    aput v3, v1, v2

    add-int/lit8 v2, v2, 0x1

    goto :goto_13

    .line 186
    :cond_24
    new-instance p1, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;

    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-direct {p1, v0, v1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;-><init>(Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;[I)V

    return-object p1
.end method

.method multiply(Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;)Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
    .registers 14

    .line 145
    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    iget-object v1, p1, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-virtual {v0, v1}, Ljava/lang/Object;->equals(Ljava/lang/Object;)Z

    move-result v0

    if-eqz v0, :cond_53

    .line 148
    invoke-virtual {p0}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->isZero()Z

    move-result v0

    if-nez v0, :cond_4c

    invoke-virtual {p1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->isZero()Z

    move-result v0

    if-eqz v0, :cond_17

    goto :goto_4c

    .line 151
    :cond_17
    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    .line 152
    array-length v1, v0

    .line 153
    iget-object p1, p1, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    .line 154
    array-length v2, p1

    add-int v3, v1, v2

    add-int/lit8 v3, v3, -0x1

    .line 155
    new-array v3, v3, [I

    const/4 v4, 0x0

    const/4 v5, 0x0

    :goto_25
    if-ge v5, v1, :cond_44

    .line 157
    aget v6, v0, v5

    const/4 v7, 0x0

    :goto_2a
    if-ge v7, v2, :cond_41

    add-int v8, v5, v7

    .line 159
    iget-object v9, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    aget v10, v3, v8

    aget v11, p1, v7

    invoke-virtual {v9, v6, v11}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->multiply(II)I

    move-result v11

    invoke-virtual {v9, v10, v11}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->add(II)I

    move-result v9

    aput v9, v3, v8

    add-int/lit8 v7, v7, 0x1

    goto :goto_2a

    :cond_41
    add-int/lit8 v5, v5, 0x1

    goto :goto_25

    .line 162
    :cond_44
    new-instance p1, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;

    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-direct {p1, v0, v3}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;-><init>(Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;[I)V

    return-object p1

    .line 149
    :cond_4c
    :goto_4c
    iget-object p1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-virtual {p1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->getZero()Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;

    move-result-object p1

    return-object p1

    .line 146
    :cond_53
    new-instance p1, Ljava/lang/IllegalArgumentException;

    const-string v0, "ModulusPolys do not have same ModulusGF field"

    invoke-direct {p1, v0}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V

    throw p1
.end method

.method multiplyByMonomial(II)Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
    .registers 7

    if-ltz p1, :cond_2b

    if-nez p2, :cond_b

    .line 194
    iget-object p1, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-virtual {p1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->getZero()Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;

    move-result-object p1

    return-object p1

    .line 196
    :cond_b
    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    array-length v0, v0

    add-int/2addr p1, v0

    .line 197
    new-array p1, p1, [I

    const/4 v1, 0x0

    :goto_12
    if-ge v1, v0, :cond_23

    .line 199
    iget-object v2, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    iget-object v3, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    aget v3, v3, v1

    invoke-virtual {v2, v3, p2}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->multiply(II)I

    move-result v2

    aput v2, p1, v1

    add-int/lit8 v1, v1, 0x1

    goto :goto_12

    .line 201
    :cond_23
    new-instance p2, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;

    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-direct {p2, v0, p1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;-><init>(Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;[I)V

    return-object p2

    .line 191
    :cond_2b
    new-instance p1, Ljava/lang/IllegalArgumentException;

    invoke-direct {p1}, Ljava/lang/IllegalArgumentException;-><init>()V

    throw p1
.end method

.method negative()Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
    .registers 7

    .line 166
    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    array-length v0, v0

    .line 167
    new-array v1, v0, [I

    const/4 v2, 0x0

    const/4 v3, 0x0

    :goto_7
    if-ge v3, v0, :cond_18

    .line 169
    iget-object v4, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    iget-object v5, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->coefficients:[I

    aget v5, v5, v3

    invoke-virtual {v4, v2, v5}, Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;->subtract(II)I

    move-result v4

    aput v4, v1, v3

    add-int/lit8 v3, v3, 0x1

    goto :goto_7

    .line 171
    :cond_18
    new-instance v0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;

    iget-object v2, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-direct {v0, v2, v1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;-><init>(Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;[I)V

    return-object v0
.end method

.method subtract(Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;)Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;
    .registers 4

    .line 135
    iget-object v0, p0, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    iget-object v1, p1, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->field:Lcom/google/zxing/pdf417/decoder/ec/ModulusGF;

    invoke-virtual {v0, v1}, Ljava/lang/Object;->equals(Ljava/lang/Object;)Z

    move-result v0

    if-eqz v0, :cond_1a

    .line 138
    invoke-virtual {p1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->isZero()Z

    move-result v0

    if-eqz v0, :cond_11

    return-object p0

    .line 141
    :cond_11
    invoke-virtual {p1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->negative()Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;

    move-result-object p1

    invoke-virtual {p0, p1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->add(Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;)Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;

    move-result-object p1

    return-object p1

    .line 136
    :cond_1a
    new-instance p1, Ljava/lang/IllegalArgumentException;

    const-string v0, "ModulusPolys do not have same ModulusGF field"

    invoke-direct {p1, v0}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V

    throw p1
.end method

.method public toString()Ljava/lang/String;
    .registers 5

    .line 234
    new-instance v0, Ljava/lang/StringBuilder;

    invoke-virtual {p0}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->getDegree()I

    move-result v1

    mul-int/lit8 v1, v1, 0x8

    invoke-direct {v0, v1}, Ljava/lang/StringBuilder;-><init>(I)V

    .line 235
    invoke-virtual {p0}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->getDegree()I

    move-result v1

    :goto_f
    if-ltz v1, :cond_48

    .line 236
    invoke-virtual {p0, v1}, Lcom/google/zxing/pdf417/decoder/ec/ModulusPoly;->getCoefficient(I)I

    move-result v2

    if-eqz v2, :cond_45

    if-gez v2, :cond_20

    const-string v3, " - "

    .line 239
    invoke-virtual {v0, v3}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    neg-int v2, v2

    goto :goto_2b

    .line 242
    :cond_20
    invoke-virtual {v0}, Ljava/lang/StringBuilder;->length()I

    move-result v3

    if-lez v3, :cond_2b

    const-string v3, " + "

    .line 243
    invoke-virtual {v0, v3}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    :cond_2b
    :goto_2b
    const/4 v3, 0x1

    if-eqz v1, :cond_30

    if-eq v2, v3, :cond_33

    .line 247
    :cond_30
    invoke-virtual {v0, v2}, Ljava/lang/StringBuilder;->append(I)Ljava/lang/StringBuilder;

    :cond_33
    if-eqz v1, :cond_45

    if-ne v1, v3, :cond_3d

    const/16 v2, 0x78

    .line 251
    invoke-virtual {v0, v2}, Ljava/lang/StringBuilder;->append(C)Ljava/lang/StringBuilder;

    goto :goto_45

    :cond_3d
    const-string v2, "x^"

    .line 253
    invoke-virtual {v0, v2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    .line 254
    invoke-virtual {v0, v1}, Ljava/lang/StringBuilder;->append(I)Ljava/lang/StringBuilder;

    :cond_45
    :goto_45
    add-int/lit8 v1, v1, -0x1

    goto :goto_f

    .line 259
    :cond_48
    invoke-virtual {v0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v0

    return-object v0
.end method