.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 1 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/4 v2, 0x2 new-array v3, v2, [I const/4 v4, 0x1 aput v0, v3, v4 const/4 v5, 0x0 aput v1, v3, v5 .line 1 const-class v6, I invoke-static {v6, v3}, Ljava/lang/reflect/Array;->newInstance(Ljava/lang/Class;[I)Ljava/lang/Object; move-result-object v3 check-cast v3, [[I move v6, v5 :goto_0 if-lt v6, v1, :cond_0 return-object v3 :cond_0 shl-int/lit8 v7, v6, 0x3 const/16 v8, 0x8 add-int/lit8 v9, p4, -0x8 if-le v7, v9, :cond_1 move v7, v9 :cond_1 move v9, v5 :goto_1 if-lt v9, v0, :cond_2 add-int/lit8 v6, v6, 0x1 goto :goto_0 :cond_2 shl-int/lit8 v10, v9, 0x3 add-int/lit8 v11, p3, -0x8 if-le v10, v11, :cond_3 move v10, v11 :cond_3 mul-int v11, v7, p3 add-int/2addr v11, v10 const/16 v10, 0xff move v12, v5 move v13, v12 move v14, v13 move v15, v10 :goto_2 const/16 v5, 0x18 if-lt v12, v8, :cond_5 shr-int/lit8 v10, v13, 0x6 sub-int/2addr v14, v15 if-gt v14, v5, :cond_4 shr-int/lit8 v10, v15, 0x1 if-lez v6, :cond_4 if-lez v9, :cond_4 add-int/lit8 v5, v6, -0x1 .line 2 aget-object v11, v3, v5 aget v11, v11, v9 aget-object v12, v3, v6 add-int/lit8 v13, v9, -0x1 aget v12, v12, v13 mul-int/2addr v12, v2 add-int/2addr v12, v11 .line 3 aget-object v5, v3, v5 aget v5, v5, v13 add-int/2addr v12, v5 shr-int/lit8 v5, v12, 0x2 if-ge v15, v5, :cond_4 move v10, v5 .line 4 :cond_4 aget-object v5, v3, v6 aput v10, v5, v9 add-int/lit8 v9, v9, 0x1 const/4 v5, 0x0 goto :goto_1 :cond_5 const/4 v2, 0x0 :goto_3 if-lt v2, v8, :cond_9 sub-int v2, v14, v15 if-le v2, v5, :cond_8 add-int/lit8 v12, v12, 0x1 add-int v11, v11, p3 move v2, v11 move v5, v12 :goto_4 if-lt v5, v8, :cond_6 move v11, v2 move v12, v5 goto :goto_6 :cond_6 const/4 v11, 0x0 :goto_5 if-lt v11, v8, :cond_7 add-int/lit8 v5, v5, 0x1 add-int v2, v2, p3 goto :goto_4 :cond_7 add-int v12, v2, v11 .line 5 aget-byte v12, p0, v12 and-int/2addr v12, v10 add-int/2addr v13, v12 add-int/lit8 v11, v11, 0x1 goto :goto_5 :cond_8 :goto_6 add-int/2addr v12, v4 add-int v11, v11, p3 const/4 v2, 0x2 goto :goto_2 :cond_9 add-int v16, v11, v2 .line 6 aget-byte v4, p0, v16 and-int/2addr v4, v10 add-int/2addr v13, v4 if-ge v4, v15, :cond_a move v15, v4 :cond_a if-le v4, v14, :cond_b move v14, v4 :cond_b add-int/lit8 v2, v2, 0x1 const/4 v4, 0x1 goto :goto_3 .end method .method private static calculateThresholdForBlock([BIIII[[ILcom/google/zxing/common/BitMatrix;)V .locals 15 move/from16 v0, p1 move/from16 v1, p2 const/4 v2, 0x0 move v3, v2 :goto_0 if-lt v3, v1, :cond_0 return-void :cond_0 shl-int/lit8 v4, v3, 0x3 add-int/lit8 v5, p4, -0x8 if-le v4, v5, :cond_1 move v4, v5 :cond_1 move v5, v2 :goto_1 if-lt v5, v0, :cond_2 add-int/lit8 v3, v3, 0x1 goto :goto_0 :cond_2 shl-int/lit8 v6, v5, 0x3 add-int/lit8 v7, p3, -0x8 if-le v6, v7, :cond_3 goto :goto_2 :cond_3 move v7, v6 :goto_2 add-int/lit8 v6, v0, -0x3 const/4 v8, 0x2 .line 1 invoke-static {v5, v8, v6}, Lcom/google/zxing/common/HybridBinarizer;->cap(III)I move-result v6 add-int/lit8 v9, v1, -0x3 .line 2 invoke-static {v3, v8, v9}, Lcom/google/zxing/common/HybridBinarizer;->cap(III)I move-result v9 const/4 v10, -0x2 move v11, v2 :goto_3 if-le v10, v8, :cond_4 .line 3 div-int/lit8 v9, v11, 0x19 move-object v6, p0 move v8, v4 move/from16 v10, p3 move-object/from16 v11, p6 .line 4 invoke-static/range {v6 .. v11}, Lcom/google/zxing/common/HybridBinarizer;->thresholdBlock([BIIIILcom/google/zxing/common/BitMatrix;)V add-int/lit8 v5, v5, 0x1 goto :goto_1 :cond_4 add-int v12, v9, v10 .line 5 aget-object v12, p5, v12 add-int/lit8 v13, v6, -0x2 .line 6 aget v13, v12, v13 add-int/lit8 v14, v6, -0x1 aget v14, v12, v14 add-int/2addr v13, v14 aget v14, v12, v6 add-int/2addr v13, v14 add-int/lit8 v14, v6, 0x1 aget v14, v12, v14 add-int/2addr v13, v14 add-int/lit8 v14, v6, 0x2 aget v12, v12, v14 add-int/2addr v13, v12 add-int/2addr v11, v13 add-int/lit8 v10, v10, 0x1 goto :goto_3 .end method .method private static cap(III)I .locals 0 if-ge p0, p1, :cond_0 move p0, p1 goto :goto_0 :cond_0 if-le p0, p2, :cond_1 move p0, p2 :cond_1 :goto_0 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-lt v2, v3, :cond_0 return-void :cond_0 move v4, v1 :goto_1 if-lt v4, v3, :cond_1 add-int/lit8 v2, v2, 0x1 add-int/2addr v0, p4 goto :goto_0 :cond_1 add-int v5, v0, v4 .line 1 aget-byte v5, p0, v5 and-int/lit16 v5, v5, 0xff if-gt v5, p3, :cond_2 add-int v5, p1, v4 add-int v6, p2, v2 .line 2 invoke-virtual {p5, v5, v6}, Lcom/google/zxing/common/BitMatrix;->set(II)V :cond_2 add-int/lit8 v4, v4, 0x1 goto :goto_1 .end method # virtual methods .method public createBinarizer(Lcom/google/zxing/LuminanceSource;)Lcom/google/zxing/Binarizer; .locals 1 .line 1 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 1 iget-object v0, p0, Lcom/google/zxing/common/HybridBinarizer;->matrix:Lcom/google/zxing/common/BitMatrix; if-eqz v0, :cond_0 return-object v0 .line 2 :cond_0 invoke-virtual {p0}, Lcom/google/zxing/Binarizer;->getLuminanceSource()Lcom/google/zxing/LuminanceSource; move-result-object v0 .line 3 invoke-virtual {v0}, Lcom/google/zxing/LuminanceSource;->getWidth()I move-result v4 .line 4 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 5 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 6 invoke-static {v1, v2, v3, v4, v5}, Lcom/google/zxing/common/HybridBinarizer;->calculateBlackPoints([BIIII)[[I move-result-object v6 .line 7 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 8 invoke-static/range {v1 .. v7}, Lcom/google/zxing/common/HybridBinarizer;->calculateThresholdForBlock([BIIII[[ILcom/google/zxing/common/BitMatrix;)V .line 9 iput-object v0, p0, Lcom/google/zxing/common/HybridBinarizer;->matrix:Lcom/google/zxing/common/BitMatrix; goto :goto_0 .line 10 :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 11 :goto_0 iget-object v0, p0, Lcom/google/zxing/common/HybridBinarizer;->matrix:Lcom/google/zxing/common/BitMatrix; return-object v0 .end method