.class public final Lcom/google/zxing/maxicode/decoder/Decoder; .super Ljava/lang/Object; .source "Decoder.java" # static fields .field private static final ALL:I = 0x0 .field private static final EVEN:I = 0x1 .field private static final ODD:I = 0x2 # instance fields .field private final rsDecoder:Lcom/google/zxing/common/reedsolomon/ReedSolomonDecoder; # direct methods .method public constructor ()V .locals 2 .line 1 invoke-direct {p0}, Ljava/lang/Object;->()V .line 2 new-instance v0, Lcom/google/zxing/common/reedsolomon/ReedSolomonDecoder; sget-object v1, Lcom/google/zxing/common/reedsolomon/GenericGF;->MAXICODE_FIELD_64:Lcom/google/zxing/common/reedsolomon/GenericGF; invoke-direct {v0, v1}, Lcom/google/zxing/common/reedsolomon/ReedSolomonDecoder;->(Lcom/google/zxing/common/reedsolomon/GenericGF;)V iput-object v0, p0, Lcom/google/zxing/maxicode/decoder/Decoder;->rsDecoder:Lcom/google/zxing/common/reedsolomon/ReedSolomonDecoder; return-void .end method .method private correctErrors([BIIII)V .locals 7 .annotation system Ldalvik/annotation/Throws; value = { Lcom/google/zxing/ChecksumException; } .end annotation add-int v0, p3, p4 if-nez p5, :cond_0 const/4 v1, 0x1 goto :goto_0 :cond_0 const/4 v1, 0x2 .line 1 :goto_0 div-int v2, v0, v1 new-array v2, v2, [I const/4 v3, 0x0 move v4, v3 :goto_1 if-lt v4, v0, :cond_4 .line 2 :try_start_0 iget-object v0, p0, Lcom/google/zxing/maxicode/decoder/Decoder;->rsDecoder:Lcom/google/zxing/common/reedsolomon/ReedSolomonDecoder; div-int/2addr p4, v1 invoke-virtual {v0, v2, p4}, Lcom/google/zxing/common/reedsolomon/ReedSolomonDecoder;->decode([II)V :try_end_0 .catch Lcom/google/zxing/common/reedsolomon/ReedSolomonException; {:try_start_0 .. :try_end_0} :catch_0 :goto_2 if-lt v3, p3, :cond_1 return-void :cond_1 if-eqz p5, :cond_2 .line 3 rem-int/lit8 p4, v3, 0x2 add-int/lit8 v0, p5, -0x1 if-ne p4, v0, :cond_3 :cond_2 add-int p4, v3, p2 .line 4 div-int v0, v3, v1 aget v0, v2, v0 int-to-byte v0, v0 aput-byte v0, p1, p4 :cond_3 add-int/lit8 v3, v3, 0x1 goto :goto_2 .line 5 :catch_0 invoke-static {}, Lcom/google/zxing/ChecksumException;->getChecksumInstance()Lcom/google/zxing/ChecksumException; move-result-object p1 throw p1 :cond_4 if-eqz p5, :cond_5 .line 6 rem-int/lit8 v5, v4, 0x2 add-int/lit8 v6, p5, -0x1 if-ne v5, v6, :cond_6 .line 7 :cond_5 div-int v5, v4, v1 add-int v6, v4, p2 aget-byte v6, p1, v6 and-int/lit16 v6, v6, 0xff aput v6, v2, v5 :cond_6 add-int/lit8 v4, v4, 0x1 goto :goto_1 .end method # virtual methods .method public decode(Lcom/google/zxing/common/BitMatrix;)Lcom/google/zxing/common/DecoderResult; .locals 1 .annotation system Ldalvik/annotation/Throws; value = { Lcom/google/zxing/ChecksumException;, Lcom/google/zxing/FormatException; } .end annotation const/4 v0, 0x0 .line 1 invoke-virtual {p0, p1, v0}, Lcom/google/zxing/maxicode/decoder/Decoder;->decode(Lcom/google/zxing/common/BitMatrix;Ljava/util/Map;)Lcom/google/zxing/common/DecoderResult; move-result-object p1 return-object p1 .end method .method public decode(Lcom/google/zxing/common/BitMatrix;Ljava/util/Map;)Lcom/google/zxing/common/DecoderResult; .locals 7 .annotation system Ldalvik/annotation/Signature; value = { "(", "Lcom/google/zxing/common/BitMatrix;", "Ljava/util/Map<", "Lcom/google/zxing/DecodeHintType;", "*>;)", "Lcom/google/zxing/common/DecoderResult;" } .end annotation .annotation system Ldalvik/annotation/Throws; value = { Lcom/google/zxing/FormatException;, Lcom/google/zxing/ChecksumException; } .end annotation .line 2 new-instance p2, Lcom/google/zxing/maxicode/decoder/BitMatrixParser; invoke-direct {p2, p1}, Lcom/google/zxing/maxicode/decoder/BitMatrixParser;->(Lcom/google/zxing/common/BitMatrix;)V .line 3 invoke-virtual {p2}, Lcom/google/zxing/maxicode/decoder/BitMatrixParser;->readCodewords()[B move-result-object p1 const/4 v2, 0x0 const/16 v3, 0xa const/16 v4, 0xa const/4 v5, 0x0 move-object v0, p0 move-object v1, p1 .line 4 invoke-direct/range {v0 .. v5}, Lcom/google/zxing/maxicode/decoder/Decoder;->correctErrors([BIIII)V const/4 p2, 0x0 .line 5 aget-byte v0, p1, p2 and-int/lit8 v6, v0, 0xf const/4 v0, 0x2 if-eq v6, v0, :cond_1 const/4 v0, 0x3 if-eq v6, v0, :cond_1 const/4 v0, 0x4 if-eq v6, v0, :cond_1 const/4 v0, 0x5 if-ne v6, v0, :cond_0 const/16 v2, 0x14 const/16 v3, 0x44 const/16 v4, 0x38 const/4 v5, 0x1 move-object v0, p0 move-object v1, p1 .line 6 invoke-direct/range {v0 .. v5}, Lcom/google/zxing/maxicode/decoder/Decoder;->correctErrors([BIIII)V const/4 v5, 0x2 .line 7 invoke-direct/range {v0 .. v5}, Lcom/google/zxing/maxicode/decoder/Decoder;->correctErrors([BIIII)V const/16 v0, 0x4e new-array v0, v0, [B goto :goto_0 .line 8 :cond_0 invoke-static {}, Lcom/google/zxing/FormatException;->getFormatInstance()Lcom/google/zxing/FormatException; move-result-object p1 throw p1 :cond_1 const/16 v2, 0x14 const/16 v3, 0x54 const/16 v4, 0x28 const/4 v5, 0x1 move-object v0, p0 move-object v1, p1 .line 9 invoke-direct/range {v0 .. v5}, Lcom/google/zxing/maxicode/decoder/Decoder;->correctErrors([BIIII)V const/4 v5, 0x2 .line 10 invoke-direct/range {v0 .. v5}, Lcom/google/zxing/maxicode/decoder/Decoder;->correctErrors([BIIII)V const/16 v0, 0x5e new-array v0, v0, [B :goto_0 const/16 v1, 0xa .line 11 invoke-static {p1, p2, v0, p2, v1}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V const/16 p2, 0x14 .line 12 array-length v2, v0 sub-int/2addr v2, v1 invoke-static {p1, p2, v0, v1, v2}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V .line 13 invoke-static {v0, v6}, Lcom/google/zxing/maxicode/decoder/DecodedBitStreamParser;->decode([BI)Lcom/google/zxing/common/DecoderResult; move-result-object p1 return-object p1 .end method