AlignmentPatternFinder.smali
.class final Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;
.super Ljava/lang/Object;
.source "AlignmentPatternFinder.java"
# instance fields
.field private final crossCheckStateCount:[I
.field private final height:I
.field private final image:Lcom/google/zxing/common/BitMatrix;
.field private final moduleSize:F
.field private final possibleCenters:Ljava/util/List;
.annotation system Ldalvik/annotation/Signature;
value = {
"Ljava/util/List<",
"Lcom/google/zxing/qrcode/detector/AlignmentPattern;",
">;"
}
.end annotation
.end field
.field private final resultPointCallback:Lcom/google/zxing/ResultPointCallback;
.field private final startX:I
.field private final startY:I
.field private final width:I
# direct methods
.method static constructor <clinit>()V
.registers 1
return-void
.end method
.method constructor <init>(Lcom/google/zxing/common/BitMatrix;IIIIFLcom/google/zxing/ResultPointCallback;)V
.registers 10
.param p1, "image" # Lcom/google/zxing/common/BitMatrix;
.param p2, "startX" # I
.param p3, "startY" # I
.param p4, "width" # I
.param p5, "height" # I
.param p6, "moduleSize" # F
.param p7, "resultPointCallback" # Lcom/google/zxing/ResultPointCallback;
.line 68
invoke-direct {p0}, Ljava/lang/Object;-><init>()V
.line 69
iput-object p1, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->image:Lcom/google/zxing/common/BitMatrix;
.line 70
new-instance v0, Ljava/util/ArrayList;
const/4 v1, 0x5
invoke-direct {v0, v1}, Ljava/util/ArrayList;-><init>(I)V
iput-object v0, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->possibleCenters:Ljava/util/List;
.line 71
iput p2, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->startX:I
.line 72
iput p3, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->startY:I
.line 73
iput p4, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->width:I
.line 74
iput p5, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->height:I
.line 75
iput p6, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->moduleSize:F
.line 76
const/4 v0, 0x3
new-array v0, v0, [I
iput-object v0, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->crossCheckStateCount:[I
.line 77
iput-object p7, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->resultPointCallback:Lcom/google/zxing/ResultPointCallback;
.line 78
return-void
.end method
.method private static centerFromEnd([II)F
.registers 5
.param p0, "stateCount" # [I
.param p1, "end" # I
.line 161
const/4 v0, 0x2
aget v0, p0, v0
sub-int v0, p1, v0
int-to-float v0, v0
const/4 v1, 0x1
aget v1, p0, v1
int-to-float v1, v1
const/high16 v2, 0x40000000 # 2.0f
div-float/2addr v1, v2
sub-float/2addr v0, v1
return v0
.end method
.method private crossCheckVertical(IIII)F
.registers 14
.param p1, "startI" # I
.param p2, "centerJ" # I
.param p3, "maxCount" # I
.param p4, "originalStateCountTotal" # I
.line 193
iget-object v0, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->image:Lcom/google/zxing/common/BitMatrix;
const/4 v1, 0x0
move-object v2, v1
.line 195
.local v2, "image":Lcom/google/zxing/common/BitMatrix;
move-object v2, v0
invoke-virtual {v0}, Lcom/google/zxing/common/BitMatrix;->getHeight()I
move-result v0
.line 196
.local v0, "maxI":I
iget-object v3, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->crossCheckStateCount:[I
.line 197
.local v1, "stateCount":[I
move-object v1, v3
const/4 v4, 0x0
aput v4, v3, v4
.line 198
const/4 v3, 0x1
aput v4, v1, v3
.line 199
const/4 v5, 0x2
aput v4, v1, v5
.line 202
move v6, p1
.line 203
.local v6, "i":I
:goto_16
if-ltz v6, :cond_2a
invoke-virtual {v2, p2, v6}, Lcom/google/zxing/common/BitMatrix;->get(II)Z
move-result v7
if-eqz v7, :cond_2a
aget v7, v1, v3
if-gt v7, p3, :cond_2a
.line 204
aget v7, v1, v3
add-int/2addr v7, v3
aput v7, v1, v3
.line 205
add-int/lit8 v6, v6, -0x1
goto :goto_16
.line 208
:cond_2a
const/high16 v7, 0x7fc00000 # Float.NaN
if-ltz v6, :cond_a5
aget v8, v1, v3
if-le v8, p3, :cond_34
goto/16 :goto_a5
.line 211
:cond_34
:goto_34
if-ltz v6, :cond_48
invoke-virtual {v2, p2, v6}, Lcom/google/zxing/common/BitMatrix;->get(II)Z
move-result v8
if-nez v8, :cond_48
aget v8, v1, v4
if-gt v8, p3, :cond_48
.line 212
aget v8, v1, v4
add-int/2addr v8, v3
aput v8, v1, v4
.line 213
add-int/lit8 v6, v6, -0x1
goto :goto_34
.line 215
:cond_48
aget v8, v1, v4
if-le v8, p3, :cond_4d
.line 216
return v7
.line 220
:cond_4d
add-int/lit8 v6, p1, 0x1
.line 221
:goto_4f
if-ge v6, v0, :cond_63
invoke-virtual {v2, p2, v6}, Lcom/google/zxing/common/BitMatrix;->get(II)Z
move-result v8
if-eqz v8, :cond_63
aget v8, v1, v3
if-gt v8, p3, :cond_63
.line 222
aget v8, v1, v3
add-int/2addr v8, v3
aput v8, v1, v3
.line 223
add-int/lit8 v6, v6, 0x1
goto :goto_4f
.line 225
:cond_63
if-eq v6, v0, :cond_a4
aget v8, v1, v3
if-le v8, p3, :cond_6a
goto :goto_a4
.line 228
:cond_6a
:goto_6a
if-ge v6, v0, :cond_7e
invoke-virtual {v2, p2, v6}, Lcom/google/zxing/common/BitMatrix;->get(II)Z
move-result v8
if-nez v8, :cond_7e
aget v8, v1, v5
if-gt v8, p3, :cond_7e
.line 229
aget v8, v1, v5
add-int/2addr v8, v3
aput v8, v1, v5
.line 230
add-int/lit8 v6, v6, 0x1
goto :goto_6a
.line 232
:cond_7e
aget v8, v1, v5
if-le v8, p3, :cond_83
.line 233
return v7
.line 236
:cond_83
aget v4, v1, v4
aget v3, v1, v3
add-int/2addr v4, v3
aget v3, v1, v5
add-int/2addr v4, v3
.line 237
.local v4, "stateCountTotal":I
sub-int v3, v4, p4
invoke-static {v3}, Ljava/lang/Math;->abs(I)I
move-result v3
mul-int/lit8 v3, v3, 0x5
mul-int/lit8 v5, p4, 0x2
if-lt v3, v5, :cond_98
.line 238
return v7
.line 241
:cond_98
invoke-direct {p0, v1}, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->foundPatternCross([I)Z
move-result v3
if-eqz v3, :cond_a3
invoke-static {v1, v6}, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->centerFromEnd([II)F
move-result v3
return v3
:cond_a3
return v7
.line 226
.end local v4 # "stateCountTotal":I
:cond_a4
:goto_a4
return v7
.line 209
:cond_a5
:goto_a5
return v7
.end method
.method private foundPatternCross([I)Z
.registers 6
.param p1, "stateCount" # [I
.line 170
iget v0, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->moduleSize:F
const/4 v1, 0x0
.line 171
.local v1, "moduleSize":F
move v1, v0
const/high16 v2, 0x40000000 # 2.0f
div-float/2addr v0, v2
.line 172
.local v0, "maxVariance":F
const/4 v2, 0x0
.local v2, "i":I
:goto_8
const/4 v3, 0x3
if-ge v2, v3, :cond_1d
.line 173
aget v3, p1, v2
int-to-float v3, v3
sub-float v3, v1, v3
invoke-static {v3}, Ljava/lang/Math;->abs(F)F
move-result v3
cmpl-float v3, v3, v0
if-ltz v3, :cond_1a
.line 174
const/4 v3, 0x0
return v3
.line 172
:cond_1a
add-int/lit8 v2, v2, 0x1
goto :goto_8
.line 177
.end local v2 # "i":I
:cond_1d
const/4 v2, 0x1
return v2
.end method
.method private handlePossibleCenter([III)Lcom/google/zxing/qrcode/detector/AlignmentPattern;
.registers 12
.param p1, "stateCount" # [I
.param p2, "i" # I
.param p3, "j" # I
.line 256
const/4 v0, 0x0
aget v1, p1, v0
const/4 v2, 0x1
aget v3, p1, v2
add-int/2addr v1, v3
const/4 v3, 0x2
aget v4, p1, v3
add-int/2addr v1, v4
.line 257
.local v1, "stateCountTotal":I
invoke-static {p1, p3}, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->centerFromEnd([II)F
move-result v4
.line 258
.local v4, "centerJ":F
float-to-int v5, v4
aget v6, p1, v2
mul-int/lit8 v6, v6, 0x2
invoke-direct {p0, p2, v5, v6, v1}, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->crossCheckVertical(IIII)F
move-result v5
const/4 v6, 0x0
.line 259
.local v6, "centerI":F
move v6, v5
invoke-static {v5}, Ljava/lang/Float;->isNaN(F)Z
move-result v5
const/4 v7, 0x0
if-nez v5, :cond_5e
.line 260
aget v0, p1, v0
aget v2, p1, v2
add-int/2addr v0, v2
aget v2, p1, v3
add-int/2addr v0, v2
int-to-float v0, v0
const/high16 v2, 0x40400000 # 3.0f
div-float/2addr v0, v2
.line 261
.local v0, "estimatedModuleSize":F
iget-object v2, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->possibleCenters:Ljava/util/List;
invoke-interface {v2}, Ljava/util/List;->iterator()Ljava/util/Iterator;
move-result-object v2
move-object v3, v7
:goto_34
invoke-interface {v2}, Ljava/util/Iterator;->hasNext()Z
move-result v5
if-eqz v5, :cond_4d
invoke-interface {v2}, Ljava/util/Iterator;->next()Ljava/lang/Object;
move-result-object v5
check-cast v5, Lcom/google/zxing/qrcode/detector/AlignmentPattern;
.line 263
.local v3, "center":Lcom/google/zxing/qrcode/detector/AlignmentPattern;
move-object v3, v5
invoke-virtual {v5, v0, v6, v4}, Lcom/google/zxing/qrcode/detector/AlignmentPattern;->aboutEquals(FFF)Z
move-result v5
if-eqz v5, :cond_4c
.line 264
invoke-virtual {v3, v6, v4, v0}, Lcom/google/zxing/qrcode/detector/AlignmentPattern;->combineEstimate(FFF)Lcom/google/zxing/qrcode/detector/AlignmentPattern;
move-result-object v2
return-object v2
.line 266
.end local v3 # "center":Lcom/google/zxing/qrcode/detector/AlignmentPattern;
:cond_4c
goto :goto_34
.line 268
:cond_4d
new-instance v2, Lcom/google/zxing/qrcode/detector/AlignmentPattern;
invoke-direct {v2, v4, v6, v0}, Lcom/google/zxing/qrcode/detector/AlignmentPattern;-><init>(FFF)V
.line 269
.local v2, "point":Lcom/google/zxing/qrcode/detector/AlignmentPattern;
iget-object v3, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->possibleCenters:Ljava/util/List;
invoke-interface {v3, v2}, Ljava/util/List;->add(Ljava/lang/Object;)Z
.line 270
iget-object v3, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->resultPointCallback:Lcom/google/zxing/ResultPointCallback;
if-eqz v3, :cond_5e
.line 271
invoke-interface {v3, v2}, Lcom/google/zxing/ResultPointCallback;->foundPossibleResultPoint(Lcom/google/zxing/ResultPoint;)V
.line 274
.end local v0 # "estimatedModuleSize":F
.end local v2 # "point":Lcom/google/zxing/qrcode/detector/AlignmentPattern;
:cond_5e
return-object v7
.end method
# virtual methods
.method find()Lcom/google/zxing/qrcode/detector/AlignmentPattern;
.registers 15
.annotation system Ldalvik/annotation/Throws;
value = {
Lcom/google/zxing/NotFoundException;
}
.end annotation
.line 88
iget v0, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->startX:I
.line 89
.local v0, "startX":I
iget v1, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->height:I
.line 90
.local v1, "height":I
iget v2, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->width:I
add-int/2addr v2, v0
.line 91
.local v2, "maxJ":I
iget v3, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->startY:I
div-int/lit8 v4, v1, 0x2
add-int/2addr v3, v4
.line 94
.local v3, "middleI":I
const/4 v4, 0x3
new-array v4, v4, [I
.line 95
.local v4, "stateCount":[I
const/4 v5, 0x0
.local v5, "iGen":I
const/4 v6, 0x0
:goto_11
const/4 v7, 0x0
if-ge v5, v1, :cond_89
.line 97
and-int/lit8 v8, v5, 0x1
const/4 v9, 0x2
if-nez v8, :cond_1d
add-int/lit8 v8, v5, 0x1
div-int/2addr v8, v9
goto :goto_21
:cond_1d
add-int/lit8 v8, v5, 0x1
div-int/2addr v8, v9
neg-int v8, v8
:goto_21
add-int/2addr v8, v3
.line 98
.local v8, "i":I
aput v7, v4, v7
.line 99
const/4 v10, 0x1
aput v7, v4, v10
.line 100
aput v7, v4, v9
.line 101
move v11, v0
.line 105
.local v11, "j":I
:goto_2a
if-ge v11, v2, :cond_37
iget-object v12, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->image:Lcom/google/zxing/common/BitMatrix;
invoke-virtual {v12, v11, v8}, Lcom/google/zxing/common/BitMatrix;->get(II)Z
move-result v12
if-nez v12, :cond_37
.line 106
add-int/lit8 v11, v11, 0x1
goto :goto_2a
.line 108
:cond_37
const/4 v12, 0x0
.line 109
.local v12, "currentState":I
:goto_38
if-ge v11, v2, :cond_78
.line 110
iget-object v13, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->image:Lcom/google/zxing/common/BitMatrix;
invoke-virtual {v13, v11, v8}, Lcom/google/zxing/common/BitMatrix;->get(II)Z
move-result v13
if-eqz v13, :cond_6c
.line 112
if-ne v12, v10, :cond_4a
.line 113
aget v13, v4, v10
add-int/2addr v13, v10
aput v13, v4, v10
goto :goto_75
.line 115
:cond_4a
if-ne v12, v9, :cond_64
.line 116
invoke-direct {p0, v4}, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->foundPatternCross([I)Z
move-result v13
if-eqz v13, :cond_5a
.line 117
invoke-direct {p0, v4, v8, v11}, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->handlePossibleCenter([III)Lcom/google/zxing/qrcode/detector/AlignmentPattern;
move-result-object v13
.line 118
.local v6, "confirmed":Lcom/google/zxing/qrcode/detector/AlignmentPattern;
move-object v6, v13
if-eqz v13, :cond_5a
.line 119
return-object v6
.line 122
.end local v6 # "confirmed":Lcom/google/zxing/qrcode/detector/AlignmentPattern;
:cond_5a
aget v13, v4, v9
aput v13, v4, v7
.line 123
aput v10, v4, v10
.line 124
aput v7, v4, v9
.line 125
const/4 v12, 0x1
goto :goto_75
.line 127
:cond_64
add-int/lit8 v12, v12, 0x1
aget v13, v4, v12
add-int/2addr v13, v10
aput v13, v4, v12
goto :goto_75
.line 131
:cond_6c
if-ne v12, v10, :cond_70
.line 132
add-int/lit8 v12, v12, 0x1
.line 134
:cond_70
aget v13, v4, v12
add-int/2addr v13, v10
aput v13, v4, v12
.line 136
:goto_75
add-int/lit8 v11, v11, 0x1
goto :goto_38
.line 138
:cond_78
invoke-direct {p0, v4}, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->foundPatternCross([I)Z
move-result v7
if-eqz v7, :cond_86
.line 139
invoke-direct {p0, v4, v8, v2}, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->handlePossibleCenter([III)Lcom/google/zxing/qrcode/detector/AlignmentPattern;
move-result-object v7
.line 140
.restart local v6 # "confirmed":Lcom/google/zxing/qrcode/detector/AlignmentPattern;
move-object v6, v7
if-eqz v7, :cond_86
.line 141
return-object v6
.line 95
.end local v6 # "confirmed":Lcom/google/zxing/qrcode/detector/AlignmentPattern;
.end local v8 # "i":I
.end local v11 # "j":I
.end local v12 # "currentState":I
:cond_86
add-int/lit8 v5, v5, 0x1
goto :goto_11
.line 149
.end local v5 # "iGen":I
:cond_89
iget-object v5, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->possibleCenters:Ljava/util/List;
invoke-interface {v5}, Ljava/util/List;->isEmpty()Z
move-result v5
if-nez v5, :cond_9a
.line 150
iget-object v5, p0, Lcom/google/zxing/qrcode/detector/AlignmentPatternFinder;->possibleCenters:Ljava/util/List;
invoke-interface {v5, v7}, Ljava/util/List;->get(I)Ljava/lang/Object;
move-result-object v5
check-cast v5, Lcom/google/zxing/qrcode/detector/AlignmentPattern;
return-object v5
.line 153
:cond_9a
invoke-static {}, Lcom/google/zxing/NotFoundException;->getNotFoundInstance()Lcom/google/zxing/NotFoundException;
move-result-object v5
goto :goto_a0
:goto_9f
throw v5
:goto_a0
goto :goto_9f
.end method