.class public final Lcom/google/zxing/common/HybridBinarizer; .super Lcom/google/zxing/common/GlobalHistogramBinarizer; .source "HybridBinarizer.java" # static fields .field private static final BLOCK_SIZE:I = 0x8 .field private static final BLOCK_SIZE_MASK:I = 0x7 .field private static final BLOCK_SIZE_POWER:I = 0x3 .field private static final MINIMUM_DIMENSION:I = 0x28 .field private static final MIN_DYNAMIC_RANGE:I = 0x18 # instance fields .field private matrix:Lcom/google/zxing/common/BitMatrix; # direct methods .method public constructor (Lcom/google/zxing/LuminanceSource;)V .locals 0 .line 53 invoke-direct {p0, p1}, Lcom/google/zxing/common/GlobalHistogramBinarizer;->(Lcom/google/zxing/LuminanceSource;)V return-void .end method .method private static calculateBlackPoints([BIIII)[[I .locals 17 move/from16 v0, p1 move/from16 v1, p2 const/16 v2, 0x8 add-int/lit8 v3, p4, -0x8 add-int/lit8 v4, p3, -0x8 const/4 v5, 0x2 new-array v6, v5, [I const/4 v7, 0x1 aput v0, v6, v7 const/4 v8, 0x0 aput v1, v6, v8 .line 168 const-class v9, I invoke-static {v9, v6}, Ljava/lang/reflect/Array;->newInstance(Ljava/lang/Class;[I)Ljava/lang/Object; move-result-object v6 check-cast v6, [[I move v9, v8 :goto_0 if-ge v9, v1, :cond_b shl-int/lit8 v10, v9, 0x3 if-le v10, v3, :cond_0 move v10, v3 :cond_0 move v11, v8 :goto_1 if-ge v11, v0, :cond_a shl-int/lit8 v12, v11, 0x3 if-le v12, v4, :cond_1 move v12, v4 :cond_1 mul-int v13, v10, p3 add-int/2addr v13, v12 const/16 v12, 0xff move v14, v8 move v15, v14 move/from16 v16, v15 move v8, v12 :goto_2 if-ge v14, v2, :cond_7 move/from16 v7, v16 const/4 v5, 0x0 :goto_3 if-ge v5, v2, :cond_4 add-int v16, v13, v5 .line 184 aget-byte v2, p0, v16 and-int/2addr v2, v12 add-int/2addr v15, v2 if-ge v2, v8, :cond_2 move v8, v2 :cond_2 if-le v2, v7, :cond_3 move v7, v2 :cond_3 add-int/lit8 v5, v5, 0x1 const/16 v2, 0x8 goto :goto_3 :cond_4 sub-int v2, v7, v8 const/16 v5, 0x18 if-le v2, v5, :cond_6 :cond_5 add-int/lit8 v14, v14, 0x1 add-int v13, v13, p3 const/16 v2, 0x8 if-ge v14, v2, :cond_6 const/4 v5, 0x0 :goto_4 if-ge v5, v2, :cond_5 add-int v16, v13, v5 .line 199 aget-byte v2, p0, v16 and-int/2addr v2, v12 add-int/2addr v15, v2 add-int/lit8 v5, v5, 0x1 const/16 v2, 0x8 goto :goto_4 :cond_6 const/4 v2, 0x1 add-int/2addr v14, v2 add-int v13, v13, p3 move/from16 v16, v7 move v7, v2 const/16 v2, 0x8 goto :goto_2 :cond_7 move v2, v7 shr-int/lit8 v5, v15, 0x6 sub-int v7, v16, v8 const/16 v12, 0x18 if-gt v7, v12, :cond_8 .line 214 div-int/lit8 v5, v8, 0x2 if-lez v9, :cond_8 if-lez v11, :cond_8 add-int/lit8 v7, v9, -0x1 .line 224 aget-object v12, v6, v7 aget v12, v12, v11 aget-object v13, v6, v9 add-int/lit8 v14, v11, -0x1 aget v13, v13, v14 const/4 v15, 0x2 mul-int/2addr v13, v15 add-int/2addr v12, v13 aget-object v7, v6, v7 aget v7, v7, v14 add-int/2addr v12, v7 div-int/lit8 v7, v12, 0x4 if-ge v8, v7, :cond_9 move v5, v7 goto :goto_5 :cond_8 const/4 v15, 0x2 .line 231 :cond_9 :goto_5 aget-object v7, v6, v9 aput v5, v7, v11 add-int/lit8 v11, v11, 0x1 move v7, v2 move v5, v15 const/16 v2, 0x8 const/4 v8, 0x0 goto/16 :goto_1 :cond_a move v15, v5 move v2, v7 add-int/lit8 v9, v9, 0x1 const/16 v2, 0x8 const/4 v8, 0x0 goto/16 :goto_0 :cond_b return-object v6 .end method .method private static calculateThresholdForBlock([BIIII[[ILcom/google/zxing/common/BitMatrix;)V .locals 17 move/from16 v0, p1 move/from16 v1, p2 add-int/lit8 v2, p4, -0x8 add-int/lit8 v9, p3, -0x8 const/4 v10, 0x0 move v11, v10 :goto_0 if-ge v11, v1, :cond_4 shl-int/lit8 v3, v11, 0x3 if-le v3, v2, :cond_0 move v12, v2 goto :goto_1 :cond_0 move v12, v3 :goto_1 add-int/lit8 v3, v1, -0x3 .line 115 invoke-static {v11, v3}, Lcom/google/zxing/common/HybridBinarizer;->cap(II)I move-result v13 move v14, v10 :goto_2 if-ge v14, v0, :cond_3 shl-int/lit8 v3, v14, 0x3 if-le v3, v9, :cond_1 move v4, v9 goto :goto_3 :cond_1 move v4, v3 :goto_3 add-int/lit8 v3, v0, -0x3 .line 121 invoke-static {v14, v3}, Lcom/google/zxing/common/HybridBinarizer;->cap(II)I move-result v3 const/4 v5, -0x2 move v6, v10 :goto_4 const/4 v7, 0x2 if-gt v5, v7, :cond_2 add-int v8, v13, v5 .line 124 aget-object v8, p5, v8 add-int/lit8 v15, v3, -0x2 .line 125 aget v15, v8, v15 add-int/lit8 v16, v3, -0x1 aget v16, v8, v16 add-int v15, v15, v16 aget v16, v8, v3 add-int v15, v15, v16 add-int/lit8 v16, v3, 0x1 aget v16, v8, v16 add-int v15, v15, v16 add-int/2addr v7, v3 aget v7, v8, v7 add-int/2addr v15, v7 add-int/2addr v6, v15 add-int/lit8 v5, v5, 0x1 goto :goto_4 .line 127 :cond_2 div-int/lit8 v6, v6, 0x19 move-object/from16 v3, p0 move v5, v12 move/from16 v7, p3 move-object/from16 v8, p6 .line 128 invoke-static/range {v3 .. v8}, Lcom/google/zxing/common/HybridBinarizer;->thresholdBlock([BIIIILcom/google/zxing/common/BitMatrix;)V add-int/lit8 v14, v14, 0x1 goto :goto_2 :cond_3 add-int/lit8 v11, v11, 0x1 goto :goto_0 :cond_4 return-void .end method .method private static cap(II)I .locals 1 const/4 v0, 0x2 if-ge p0, v0, :cond_0 return v0 .line 134 :cond_0 invoke-static {p0, p1}, Ljava/lang/Math;->min(II)I move-result p0 return p0 .end method .method private static thresholdBlock([BIIIILcom/google/zxing/common/BitMatrix;)V .locals 7 mul-int v0, p2, p4 add-int/2addr v0, p1 const/4 v1, 0x0 move v2, v1 :goto_0 const/16 v3, 0x8 if-ge v2, v3, :cond_2 move v4, v1 :goto_1 if-ge v4, v3, :cond_1 add-int v5, v0, v4 .line 149 aget-byte v5, p0, v5 and-int/lit16 v5, v5, 0xff if-gt v5, p3, :cond_0 add-int v5, p1, v4 add-int v6, p2, v2 .line 150 invoke-virtual {p5, v5, v6}, Lcom/google/zxing/common/BitMatrix;->set(II)V :cond_0 add-int/lit8 v4, v4, 0x1 goto :goto_1 :cond_1 add-int/lit8 v2, v2, 0x1 add-int/2addr v0, p4 goto :goto_0 :cond_2 return-void .end method # virtual methods .method public createBinarizer(Lcom/google/zxing/LuminanceSource;)Lcom/google/zxing/Binarizer; .locals 1 .line 93 new-instance v0, Lcom/google/zxing/common/HybridBinarizer; invoke-direct {v0, p1}, Lcom/google/zxing/common/HybridBinarizer;->(Lcom/google/zxing/LuminanceSource;)V return-object v0 .end method .method public getBlackMatrix()Lcom/google/zxing/common/BitMatrix; .locals 8 .annotation system Ldalvik/annotation/Throws; value = { Lcom/google/zxing/NotFoundException; } .end annotation .line 63 iget-object v0, p0, Lcom/google/zxing/common/HybridBinarizer;->matrix:Lcom/google/zxing/common/BitMatrix; if-eqz v0, :cond_0 return-object v0 .line 66 :cond_0 invoke-virtual {p0}, Lcom/google/zxing/common/HybridBinarizer;->getLuminanceSource()Lcom/google/zxing/LuminanceSource; move-result-object v0 .line 67 invoke-virtual {v0}, Lcom/google/zxing/LuminanceSource;->getWidth()I move-result v4 .line 68 invoke-virtual {v0}, Lcom/google/zxing/LuminanceSource;->getHeight()I move-result v5 const/16 v1, 0x28 if-lt v4, v1, :cond_3 if-lt v5, v1, :cond_3 .line 70 invoke-virtual {v0}, Lcom/google/zxing/LuminanceSource;->getMatrix()[B move-result-object v1 shr-int/lit8 v0, v4, 0x3 and-int/lit8 v2, v4, 0x7 if-eqz v2, :cond_1 add-int/lit8 v0, v0, 0x1 :cond_1 move v2, v0 shr-int/lit8 v0, v5, 0x3 and-int/lit8 v3, v5, 0x7 if-eqz v3, :cond_2 add-int/lit8 v0, v0, 0x1 :cond_2 move v3, v0 .line 79 invoke-static {v1, v2, v3, v4, v5}, Lcom/google/zxing/common/HybridBinarizer;->calculateBlackPoints([BIIII)[[I move-result-object v6 .line 81 new-instance v0, Lcom/google/zxing/common/BitMatrix; invoke-direct {v0, v4, v5}, Lcom/google/zxing/common/BitMatrix;->(II)V move-object v7, v0 .line 82 invoke-static/range {v1 .. v7}, Lcom/google/zxing/common/HybridBinarizer;->calculateThresholdForBlock([BIIII[[ILcom/google/zxing/common/BitMatrix;)V .line 83 iput-object v0, p0, Lcom/google/zxing/common/HybridBinarizer;->matrix:Lcom/google/zxing/common/BitMatrix; goto :goto_0 .line 86 :cond_3 invoke-super {p0}, Lcom/google/zxing/common/GlobalHistogramBinarizer;->getBlackMatrix()Lcom/google/zxing/common/BitMatrix; move-result-object v0 iput-object v0, p0, Lcom/google/zxing/common/HybridBinarizer;->matrix:Lcom/google/zxing/common/BitMatrix; .line 88 :goto_0 iget-object v0, p0, Lcom/google/zxing/common/HybridBinarizer;->matrix:Lcom/google/zxing/common/BitMatrix; return-object v0 .end method