Detector.smali
.class public final Lcom/dcloud/zxing2/pdf417/detector/Detector;
.super Ljava/lang/Object;
# static fields
.field private static final BARCODE_MIN_HEIGHT:I = 0xa
.field private static final INDEXES_START_PATTERN:[I
.field private static final INDEXES_STOP_PATTERN:[I
.field private static final MAX_AVG_VARIANCE:F = 0.42f
.field private static final MAX_INDIVIDUAL_VARIANCE:F = 0.8f
.field private static final MAX_PATTERN_DRIFT:I = 0x5
.field private static final MAX_PIXEL_DRIFT:I = 0x3
.field private static final ROW_STEP:I = 0x5
.field private static final SKIPPED_ROW_COUNT_MAX:I = 0x19
.field private static final START_PATTERN:[I
.field private static final STOP_PATTERN:[I
# direct methods
.method static constructor <clinit>()V
.registers 2
const/4 v0, 0x4
new-array v1, v0, [I
.line 1
fill-array-data v1, :array_22
sput-object v1, Lcom/dcloud/zxing2/pdf417/detector/Detector;->INDEXES_START_PATTERN:[I
new-array v0, v0, [I
.line 2
fill-array-data v0, :array_2e
sput-object v0, Lcom/dcloud/zxing2/pdf417/detector/Detector;->INDEXES_STOP_PATTERN:[I
const/16 v0, 0x8
new-array v0, v0, [I
.line 8
fill-array-data v0, :array_3a
sput-object v0, Lcom/dcloud/zxing2/pdf417/detector/Detector;->START_PATTERN:[I
const/16 v0, 0x9
new-array v0, v0, [I
.line 10
fill-array-data v0, :array_4e
sput-object v0, Lcom/dcloud/zxing2/pdf417/detector/Detector;->STOP_PATTERN:[I
return-void
:array_22
.array-data 4
0x0
0x4
0x1
0x5
.end array-data
:array_2e
.array-data 4
0x6
0x2
0x7
0x3
.end array-data
:array_3a
.array-data 4
0x8
0x1
0x1
0x1
0x1
0x1
0x1
0x3
.end array-data
:array_4e
.array-data 4
0x7
0x1
0x1
0x3
0x1
0x1
0x1
0x2
0x1
.end array-data
.end method
.method private constructor <init>()V
.registers 1
.line 1
invoke-direct {p0}, Ljava/lang/Object;-><init>()V
return-void
.end method
.method private static copyToResult([Lcom/dcloud/zxing2/ResultPoint;[Lcom/dcloud/zxing2/ResultPoint;[I)V
.registers 6
const/4 v0, 0x0
.line 1
:goto_1
array-length v1, p2
if-ge v0, v1, :cond_d
.line 2
aget v1, p2, v0
aget-object v2, p1, v0
aput-object v2, p0, v1
add-int/lit8 v0, v0, 0x1
goto :goto_1
:cond_d
return-void
.end method
.method public static detect(Lcom/dcloud/zxing2/BinaryBitmap;Ljava/util/Map;Z)Lcom/dcloud/zxing2/pdf417/detector/PDF417DetectorResult;
.registers 4
.annotation system Ldalvik/annotation/Signature;
value = {
"(",
"Lcom/dcloud/zxing2/BinaryBitmap;",
"Ljava/util/Map<",
"Lcom/dcloud/zxing2/DecodeHintType;",
"*>;Z)",
"Lcom/dcloud/zxing2/pdf417/detector/PDF417DetectorResult;"
}
.end annotation
.annotation system Ldalvik/annotation/Throws;
value = {
Lcom/dcloud/zxing2/NotFoundException;
}
.end annotation
.line 1
invoke-virtual {p0}, Lcom/dcloud/zxing2/BinaryBitmap;->getBlackMatrix()Lcom/dcloud/zxing2/common/BitMatrix;
move-result-object p0
.line 3
invoke-static {p2, p0}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->detect(ZLcom/dcloud/zxing2/common/BitMatrix;)Ljava/util/List;
move-result-object p1
.line 14
invoke-interface {p1}, Ljava/util/List;->isEmpty()Z
move-result v0
if-eqz v0, :cond_16
.line 15
invoke-virtual {p0}, Lcom/dcloud/zxing2/common/BitMatrix;->rotate90()Lcom/dcloud/zxing2/common/BitMatrix;
move-result-object p0
.line 16
invoke-static {p2, p0}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->detect(ZLcom/dcloud/zxing2/common/BitMatrix;)Ljava/util/List;
move-result-object p1
.line 19
:cond_16
invoke-interface {p1}, Ljava/util/List;->isEmpty()Z
move-result v0
if-eqz v0, :cond_24
.line 20
invoke-virtual {p0}, Lcom/dcloud/zxing2/common/BitMatrix;->rotate90()Lcom/dcloud/zxing2/common/BitMatrix;
move-result-object p0
.line 21
invoke-static {p2, p0}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->detect(ZLcom/dcloud/zxing2/common/BitMatrix;)Ljava/util/List;
move-result-object p1
.line 24
:cond_24
invoke-interface {p1}, Ljava/util/List;->isEmpty()Z
move-result v0
if-eqz v0, :cond_32
.line 25
invoke-virtual {p0}, Lcom/dcloud/zxing2/common/BitMatrix;->rotate90()Lcom/dcloud/zxing2/common/BitMatrix;
move-result-object p0
.line 26
invoke-static {p2, p0}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->detect(ZLcom/dcloud/zxing2/common/BitMatrix;)Ljava/util/List;
move-result-object p1
.line 29
:cond_32
new-instance p2, Lcom/dcloud/zxing2/pdf417/detector/PDF417DetectorResult;
invoke-direct {p2, p0, p1}, Lcom/dcloud/zxing2/pdf417/detector/PDF417DetectorResult;-><init>(Lcom/dcloud/zxing2/common/BitMatrix;Ljava/util/List;)V
return-object p2
.end method
.method private static detect(ZLcom/dcloud/zxing2/common/BitMatrix;)Ljava/util/List;
.registers 10
.annotation system Ldalvik/annotation/Signature;
value = {
"(Z",
"Lcom/dcloud/zxing2/common/BitMatrix;",
")",
"Ljava/util/List<",
"[",
"Lcom/dcloud/zxing2/ResultPoint;",
">;"
}
.end annotation
.line 30
new-instance v0, Ljava/util/ArrayList;
invoke-direct {v0}, Ljava/util/ArrayList;-><init>()V
const/4 v1, 0x1
const/4 v2, 0x0
move v3, v2
move v4, v3
:goto_9
move v5, v4
.line 34
:goto_a
invoke-virtual {p1}, Lcom/dcloud/zxing2/common/BitMatrix;->getHeight()I
move-result v6
if-ge v3, v6, :cond_7f
.line 35
invoke-static {p1, v3, v4}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->findVertices(Lcom/dcloud/zxing2/common/BitMatrix;II)[Lcom/dcloud/zxing2/ResultPoint;
move-result-object v4
.line 37
aget-object v6, v4, v2
if-nez v6, :cond_54
const/4 v6, 0x3
aget-object v7, v4, v6
if-nez v7, :cond_54
if-nez v5, :cond_20
goto :goto_7f
.line 46
:cond_20
invoke-interface {v0}, Ljava/util/List;->iterator()Ljava/util/Iterator;
move-result-object v4
:cond_24
:goto_24
invoke-interface {v4}, Ljava/util/Iterator;->hasNext()Z
move-result v5
if-eqz v5, :cond_50
invoke-interface {v4}, Ljava/util/Iterator;->next()Ljava/lang/Object;
move-result-object v5
check-cast v5, [Lcom/dcloud/zxing2/ResultPoint;
.line 47
aget-object v7, v5, v1
if-eqz v7, :cond_40
int-to-float v3, v3
.line 48
aget-object v7, v5, v1
invoke-virtual {v7}, Lcom/dcloud/zxing2/ResultPoint;->getY()F
move-result v7
invoke-static {v3, v7}, Ljava/lang/Math;->max(FF)F
move-result v3
float-to-int v3, v3
.line 50
:cond_40
aget-object v7, v5, v6
if-eqz v7, :cond_24
.line 51
aget-object v5, v5, v6
invoke-virtual {v5}, Lcom/dcloud/zxing2/ResultPoint;->getY()F
move-result v5
float-to-int v5, v5
invoke-static {v3, v5}, Ljava/lang/Math;->max(II)I
move-result v3
goto :goto_24
:cond_50
add-int/lit8 v3, v3, 0x5
move v4, v2
goto :goto_9
.line 58
:cond_54
invoke-interface {v0, v4}, Ljava/util/List;->add(Ljava/lang/Object;)Z
if-nez p0, :cond_5a
goto :goto_7f
:cond_5a
const/4 v3, 0x2
.line 64
aget-object v5, v4, v3
if-eqz v5, :cond_6d
.line 65
aget-object v5, v4, v3
invoke-virtual {v5}, Lcom/dcloud/zxing2/ResultPoint;->getX()F
move-result v5
float-to-int v5, v5
.line 66
aget-object v3, v4, v3
invoke-virtual {v3}, Lcom/dcloud/zxing2/ResultPoint;->getY()F
move-result v3
goto :goto_7b
:cond_6d
const/4 v3, 0x4
.line 68
aget-object v5, v4, v3
invoke-virtual {v5}, Lcom/dcloud/zxing2/ResultPoint;->getX()F
move-result v5
float-to-int v5, v5
.line 69
aget-object v3, v4, v3
invoke-virtual {v3}, Lcom/dcloud/zxing2/ResultPoint;->getY()F
move-result v3
:goto_7b
float-to-int v3, v3
move v4, v5
move v5, v1
goto :goto_a
:cond_7f
:goto_7f
return-object v0
.end method
.method private static findGuardPattern(Lcom/dcloud/zxing2/common/BitMatrix;IIIZ[I[I)[I
.registers 16
.line 1
array-length v0, p6
const/4 v1, 0x0
invoke-static {p6, v1, v0, v1}, Ljava/util/Arrays;->fill([IIII)V
.line 2
array-length v0, p5
move v2, v1
.line 8
:goto_7
invoke-virtual {p0, p1, p2}, Lcom/dcloud/zxing2/common/BitMatrix;->get(II)Z
move-result v3
if-eqz v3, :cond_18
if-lez p1, :cond_18
add-int/lit8 v3, v2, 0x1
const/4 v4, 0x3
if-ge v2, v4, :cond_18
add-int/lit8 p1, p1, -0x1
move v2, v3
goto :goto_7
:cond_18
move v2, p4
move v3, v1
move p4, p1
:goto_1b
const v4, 0x3ed70a3d # 0.42f
const v5, 0x3f4ccccd # 0.8f
const/4 v6, 0x2
const/4 v7, 0x1
if-ge p1, p3, :cond_60
.line 14
invoke-virtual {p0, p1, p2}, Lcom/dcloud/zxing2/common/BitMatrix;->get(II)Z
move-result v8
xor-int/2addr v8, v2
if-eqz v8, :cond_32
.line 16
aget v4, p6, v3
add-int/2addr v4, v7
aput v4, p6, v3
goto :goto_5d
:cond_32
add-int/lit8 v8, v0, -0x1
if-ne v3, v8, :cond_57
.line 19
invoke-static {p6, p5, v5}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->patternMatchVariance([I[IF)F
move-result v5
cmpg-float v4, v5, v4
if-gez v4, :cond_45
new-array p0, v6, [I
aput p4, p0, v1
aput p1, p0, v7
return-object p0
.line 22
:cond_45
aget v4, p6, v1
aget v5, p6, v7
add-int/2addr v4, v5
add-int/2addr p4, v4
add-int/lit8 v4, v0, -0x2
.line 23
invoke-static {p6, v6, p6, v1, v4}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V
.line 24
aput v1, p6, v4
.line 25
aput v1, p6, v8
add-int/lit8 v3, v3, -0x1
goto :goto_59
:cond_57
add-int/lit8 v3, v3, 0x1
.line 30
:goto_59
aput v7, p6, v3
xor-int/lit8 v2, v2, 0x1
:goto_5d
add-int/lit8 p1, p1, 0x1
goto :goto_1b
:cond_60
sub-int/2addr v0, v7
if-ne v3, v0, :cond_73
.line 35
invoke-static {p6, p5, v5}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->patternMatchVariance([I[IF)F
move-result p0
cmpg-float p0, p0, v4
if-gez p0, :cond_73
new-array p0, v6, [I
aput p4, p0, v1
sub-int/2addr p1, v7
aput p1, p0, v7
return-object p0
:cond_73
const/4 p0, 0x0
return-object p0
.end method
.method private static findRowsWithPattern(Lcom/dcloud/zxing2/common/BitMatrix;IIII[I)[Lcom/dcloud/zxing2/ResultPoint;
.registers 25
move/from16 v0, p1
const/4 v1, 0x4
new-array v2, v1, [Lcom/dcloud/zxing2/ResultPoint;
move-object/from16 v10, p5
.line 3
array-length v3, v10
new-array v11, v3, [I
move/from16 v12, p3
:goto_c
const/4 v13, 0x0
const/4 v14, 0x1
if-ge v12, v0, :cond_5c
const/4 v7, 0x0
move-object/from16 v3, p0
move/from16 v4, p4
move v5, v12
move/from16 v6, p2
move-object/from16 v8, p5
move-object v9, v11
.line 5
invoke-static/range {v3 .. v9}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->findGuardPattern(Lcom/dcloud/zxing2/common/BitMatrix;IIIZ[I[I)[I
move-result-object v3
if-eqz v3, :cond_59
move/from16 v18, v12
move-object v12, v3
move/from16 v3, v18
:goto_26
if-lez v3, :cond_40
add-int/lit8 v15, v3, -0x1
const/4 v7, 0x0
move-object/from16 v3, p0
move/from16 v4, p4
move v5, v15
move/from16 v6, p2
move-object/from16 v8, p5
move-object v9, v11
.line 8
invoke-static/range {v3 .. v9}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->findGuardPattern(Lcom/dcloud/zxing2/common/BitMatrix;IIIZ[I[I)[I
move-result-object v3
if-eqz v3, :cond_3e
move-object v12, v3
move v3, v15
goto :goto_26
:cond_3e
add-int/2addr v15, v14
goto :goto_41
:cond_40
move v15, v3
.line 16
:goto_41
new-instance v3, Lcom/dcloud/zxing2/ResultPoint;
aget v4, v12, v13
int-to-float v4, v4
int-to-float v5, v15
invoke-direct {v3, v4, v5}, Lcom/dcloud/zxing2/ResultPoint;-><init>(FF)V
aput-object v3, v2, v13
.line 17
new-instance v3, Lcom/dcloud/zxing2/ResultPoint;
aget v4, v12, v14
int-to-float v4, v4
invoke-direct {v3, v4, v5}, Lcom/dcloud/zxing2/ResultPoint;-><init>(FF)V
aput-object v3, v2, v14
move v3, v14
move v12, v15
goto :goto_5d
:cond_59
add-int/lit8 v12, v12, 0x5
goto :goto_c
:cond_5c
move v3, v13
:goto_5d
add-int/lit8 v4, v12, 0x1
if-eqz v3, :cond_d3
const/4 v15, 0x2
new-array v3, v15, [I
.line 26
aget-object v5, v2, v13
invoke-virtual {v5}, Lcom/dcloud/zxing2/ResultPoint;->getX()F
move-result v5
float-to-int v5, v5
aput v5, v3, v13
aget-object v5, v2, v14
invoke-virtual {v5}, Lcom/dcloud/zxing2/ResultPoint;->getX()F
move-result v5
float-to-int v5, v5
aput v5, v3, v14
move-object/from16 v16, v3
move v9, v4
move v8, v13
:goto_7a
if-ge v9, v0, :cond_b6
.line 28
aget v4, v16, v13
const/4 v7, 0x0
move-object/from16 v3, p0
move v5, v9
move/from16 v6, p2
move v1, v8
move-object/from16 v8, p5
move/from16 v17, v9
move-object v9, v11
invoke-static/range {v3 .. v9}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->findGuardPattern(Lcom/dcloud/zxing2/common/BitMatrix;IIIZ[I[I)[I
move-result-object v3
if-eqz v3, :cond_ab
.line 33
aget v4, v16, v13
aget v5, v3, v13
sub-int/2addr v4, v5
.line 34
invoke-static {v4}, Ljava/lang/Math;->abs(I)I
move-result v4
const/4 v5, 0x5
if-ge v4, v5, :cond_ab
aget v4, v16, v14
aget v6, v3, v14
sub-int/2addr v4, v6
.line 35
invoke-static {v4}, Ljava/lang/Math;->abs(I)I
move-result v4
if-ge v4, v5, :cond_ab
move-object/from16 v16, v3
move v8, v13
goto :goto_b2
:cond_ab
const/16 v3, 0x19
if-le v1, v3, :cond_b0
goto :goto_b9
:cond_b0
add-int/lit8 v8, v1, 0x1
:goto_b2
add-int/lit8 v9, v17, 0x1
const/4 v1, 0x4
goto :goto_7a
:cond_b6
move v1, v8
move/from16 v17, v9
:goto_b9
add-int/lit8 v8, v1, 0x1
sub-int v4, v17, v8
.line 47
new-instance v0, Lcom/dcloud/zxing2/ResultPoint;
aget v1, v16, v13
int-to-float v1, v1
int-to-float v3, v4
invoke-direct {v0, v1, v3}, Lcom/dcloud/zxing2/ResultPoint;-><init>(FF)V
aput-object v0, v2, v15
.line 48
new-instance v0, Lcom/dcloud/zxing2/ResultPoint;
aget v1, v16, v14
int-to-float v1, v1
invoke-direct {v0, v1, v3}, Lcom/dcloud/zxing2/ResultPoint;-><init>(FF)V
const/4 v1, 0x3
aput-object v0, v2, v1
:cond_d3
sub-int/2addr v4, v12
const/16 v0, 0xa
if-ge v4, v0, :cond_e1
const/4 v0, 0x4
:goto_d9
if-ge v13, v0, :cond_e1
const/4 v1, 0x0
.line 52
aput-object v1, v2, v13
add-int/lit8 v13, v13, 0x1
goto :goto_d9
:cond_e1
return-object v2
.end method
.method private static findVertices(Lcom/dcloud/zxing2/common/BitMatrix;II)[Lcom/dcloud/zxing2/ResultPoint;
.registers 12
.line 1
invoke-virtual {p0}, Lcom/dcloud/zxing2/common/BitMatrix;->getHeight()I
move-result v6
.line 2
invoke-virtual {p0}, Lcom/dcloud/zxing2/common/BitMatrix;->getWidth()I
move-result v7
const/16 v0, 0x8
new-array v8, v0, [Lcom/dcloud/zxing2/ResultPoint;
.line 5
sget-object v5, Lcom/dcloud/zxing2/pdf417/detector/Detector;->START_PATTERN:[I
move-object v0, p0
move v1, v6
move v2, v7
move v3, p1
move v4, p2
invoke-static/range {v0 .. v5}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->findRowsWithPattern(Lcom/dcloud/zxing2/common/BitMatrix;IIII[I)[Lcom/dcloud/zxing2/ResultPoint;
move-result-object v0
sget-object v1, Lcom/dcloud/zxing2/pdf417/detector/Detector;->INDEXES_START_PATTERN:[I
invoke-static {v8, v0, v1}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->copyToResult([Lcom/dcloud/zxing2/ResultPoint;[Lcom/dcloud/zxing2/ResultPoint;[I)V
const/4 v0, 0x4
.line 8
aget-object v1, v8, v0
if-eqz v1, :cond_2f
.line 9
aget-object p1, v8, v0
invoke-virtual {p1}, Lcom/dcloud/zxing2/ResultPoint;->getX()F
move-result p1
float-to-int p2, p1
.line 10
aget-object p1, v8, v0
invoke-virtual {p1}, Lcom/dcloud/zxing2/ResultPoint;->getY()F
move-result p1
float-to-int p1, p1
:cond_2f
move v3, p1
move v4, p2
.line 12
sget-object v5, Lcom/dcloud/zxing2/pdf417/detector/Detector;->STOP_PATTERN:[I
move-object v0, p0
move v1, v6
move v2, v7
invoke-static/range {v0 .. v5}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->findRowsWithPattern(Lcom/dcloud/zxing2/common/BitMatrix;IIII[I)[Lcom/dcloud/zxing2/ResultPoint;
move-result-object p0
sget-object p1, Lcom/dcloud/zxing2/pdf417/detector/Detector;->INDEXES_STOP_PATTERN:[I
invoke-static {v8, p0, p1}, Lcom/dcloud/zxing2/pdf417/detector/Detector;->copyToResult([Lcom/dcloud/zxing2/ResultPoint;[Lcom/dcloud/zxing2/ResultPoint;[I)V
return-object v8
.end method
.method private static patternMatchVariance([I[IF)F
.registers 12
.line 1
array-length v0, p0
const/4 v1, 0x0
move v2, v1
move v3, v2
move v4, v3
:goto_5
if-ge v2, v0, :cond_10
.line 5
aget v5, p0, v2
add-int/2addr v3, v5
.line 6
aget v5, p1, v2
add-int/2addr v4, v5
add-int/lit8 v2, v2, 0x1
goto :goto_5
:cond_10
const/high16 v2, 0x7f800000 # Float.POSITIVE_INFINITY
if-ge v3, v4, :cond_15
return v2
:cond_15
int-to-float v3, v3
int-to-float v4, v4
div-float v4, v3, v4
mul-float/2addr p2, v4
const/4 v5, 0x0
:goto_1b
if-ge v1, v0, :cond_35
.line 21
aget v6, p0, v1
.line 22
aget v7, p1, v1
int-to-float v7, v7
mul-float/2addr v7, v4
int-to-float v6, v6
cmpl-float v8, v6, v7
if-lez v8, :cond_2a
sub-float/2addr v6, v7
goto :goto_2c
:cond_2a
sub-float v6, v7, v6
:goto_2c
cmpl-float v7, v6, p2
if-lez v7, :cond_31
return v2
:cond_31
add-float/2addr v5, v6
add-int/lit8 v1, v1, 0x1
goto :goto_1b
:cond_35
div-float/2addr v5, v3
return v5
.end method