.class public final Lcom/bumptech/glide/util/ByteBufferUtil;
.super Ljava/lang/Object;
.source "ByteBufferUtil.java"


# annotations
.annotation system Ldalvik/annotation/MemberClasses;
    value = {
        Lcom/bumptech/glide/util/ByteBufferUtil$ByteBufferStream;,
        Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;
    }
.end annotation


# static fields
.field private static final BUFFER_REF:Ljava/util/concurrent/atomic/AtomicReference;
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "Ljava/util/concurrent/atomic/AtomicReference<",
            "[B>;"
        }
    .end annotation
.end field

.field private static final BUFFER_SIZE:I = 0x4000


# direct methods
.method static constructor <clinit>()V
    .registers 1

    .line 22
    new-instance v0, Ljava/util/concurrent/atomic/AtomicReference;

    invoke-direct {v0}, Ljava/util/concurrent/atomic/AtomicReference;-><init>()V

    sput-object v0, Lcom/bumptech/glide/util/ByteBufferUtil;->BUFFER_REF:Ljava/util/concurrent/atomic/AtomicReference;

    return-void
.end method

.method private constructor <init>()V
    .registers 1

    .line 24
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method public static fromFile(Ljava/io/File;)Ljava/nio/ByteBuffer;
    .registers 9
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    const/4 v0, 0x0

    .line 33
    :try_start_1
    invoke-virtual {p0}, Ljava/io/File;->length()J

    move-result-wide v5

    const-wide/32 v1, 0x7fffffff

    cmp-long v1, v5, v1

    if-gtz v1, :cond_3d

    const-wide/16 v1, 0x0

    cmp-long v1, v5, v1

    if-eqz v1, :cond_35

    .line 43
    new-instance v7, Ljava/io/RandomAccessFile;

    const-string v1, "r"

    invoke-direct {v7, p0, v1}, Ljava/io/RandomAccessFile;-><init>(Ljava/io/File;Ljava/lang/String;)V
    :try_end_19
    .catchall {:try_start_1 .. :try_end_19} :catchall_45

    .line 44
    :try_start_19
    invoke-virtual {v7}, Ljava/io/RandomAccessFile;->getChannel()Ljava/nio/channels/FileChannel;

    move-result-object v0

    .line 45
    sget-object v2, Ljava/nio/channels/FileChannel$MapMode;->READ_ONLY:Ljava/nio/channels/FileChannel$MapMode;

    const-wide/16 v3, 0x0

    move-object v1, v0

    invoke-virtual/range {v1 .. v6}, Ljava/nio/channels/FileChannel;->map(Ljava/nio/channels/FileChannel$MapMode;JJ)Ljava/nio/MappedByteBuffer;

    move-result-object p0

    invoke-virtual {p0}, Ljava/nio/MappedByteBuffer;->load()Ljava/nio/MappedByteBuffer;

    move-result-object p0
    :try_end_2a
    .catchall {:try_start_19 .. :try_end_2a} :catchall_33

    if-eqz v0, :cond_2f

    .line 49
    :try_start_2c
    invoke-virtual {v0}, Ljava/nio/channels/FileChannel;->close()V
    :try_end_2f
    .catch Ljava/io/IOException; {:try_start_2c .. :try_end_2f} :catch_2f

    .line 56
    :catch_2f
    :cond_2f
    :try_start_2f
    invoke-virtual {v7}, Ljava/io/RandomAccessFile;->close()V
    :try_end_32
    .catch Ljava/io/IOException; {:try_start_2f .. :try_end_32} :catch_32

    :catch_32
    return-object p0

    :catchall_33
    move-exception p0

    goto :goto_47

    .line 40
    :cond_35
    :try_start_35
    new-instance p0, Ljava/io/IOException;

    const-string v1, "File unsuitable for memory mapping"

    invoke-direct {p0, v1}, Ljava/io/IOException;-><init>(Ljava/lang/String;)V

    throw p0

    .line 36
    :cond_3d
    new-instance p0, Ljava/io/IOException;

    const-string v1, "File too large to map into memory"

    invoke-direct {p0, v1}, Ljava/io/IOException;-><init>(Ljava/lang/String;)V

    throw p0
    :try_end_45
    .catchall {:try_start_35 .. :try_end_45} :catchall_45

    :catchall_45
    move-exception p0

    move-object v7, v0

    :goto_47
    if-eqz v0, :cond_4c

    .line 49
    :try_start_49
    invoke-virtual {v0}, Ljava/nio/channels/FileChannel;->close()V
    :try_end_4c
    .catch Ljava/io/IOException; {:try_start_49 .. :try_end_4c} :catch_4c

    :catch_4c
    :cond_4c
    if-eqz v7, :cond_51

    .line 56
    :try_start_4e
    invoke-virtual {v7}, Ljava/io/RandomAccessFile;->close()V
    :try_end_51
    .catch Ljava/io/IOException; {:try_start_4e .. :try_end_51} :catch_51

    .line 59
    :catch_51
    :cond_51
    throw p0
.end method

.method public static fromStream(Ljava/io/InputStream;)Ljava/nio/ByteBuffer;
    .registers 5
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 138
    new-instance v0, Ljava/io/ByteArrayOutputStream;

    const/16 v1, 0x4000

    invoke-direct {v0, v1}, Ljava/io/ByteArrayOutputStream;-><init>(I)V

    .line 140
    sget-object v2, Lcom/bumptech/glide/util/ByteBufferUtil;->BUFFER_REF:Ljava/util/concurrent/atomic/AtomicReference;

    const/4 v3, 0x0

    invoke-virtual {v2, v3}, Ljava/util/concurrent/atomic/AtomicReference;->getAndSet(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object v2

    check-cast v2, [B

    if-nez v2, :cond_14

    .line 142
    new-array v2, v1, [B

    .line 146
    :cond_14
    :goto_14
    invoke-virtual {p0, v2}, Ljava/io/InputStream;->read([B)I

    move-result v1

    const/4 v3, 0x0

    if-ltz v1, :cond_1f

    .line 147
    invoke-virtual {v0, v2, v3, v1}, Ljava/io/ByteArrayOutputStream;->write([BII)V

    goto :goto_14

    .line 150
    :cond_1f
    sget-object p0, Lcom/bumptech/glide/util/ByteBufferUtil;->BUFFER_REF:Ljava/util/concurrent/atomic/AtomicReference;

    invoke-virtual {p0, v2}, Ljava/util/concurrent/atomic/AtomicReference;->set(Ljava/lang/Object;)V

    .line 152
    invoke-virtual {v0}, Ljava/io/ByteArrayOutputStream;->toByteArray()[B

    move-result-object p0

    .line 155
    array-length v0, p0

    invoke-static {v0}, Ljava/nio/ByteBuffer;->allocateDirect(I)Ljava/nio/ByteBuffer;

    move-result-object v0

    invoke-virtual {v0, p0}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    move-result-object p0

    invoke-virtual {p0, v3}, Ljava/nio/ByteBuffer;->position(I)Ljava/nio/Buffer;

    move-result-object p0

    check-cast p0, Ljava/nio/ByteBuffer;

    return-object p0
.end method

.method private static getSafeArray(Ljava/nio/ByteBuffer;)Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;
    .registers 4

    .line 160
    invoke-virtual {p0}, Ljava/nio/ByteBuffer;->isReadOnly()Z

    move-result v0

    if-nez v0, :cond_1e

    invoke-virtual {p0}, Ljava/nio/ByteBuffer;->hasArray()Z

    move-result v0

    if-eqz v0, :cond_1e

    .line 161
    new-instance v0, Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;

    invoke-virtual {p0}, Ljava/nio/ByteBuffer;->array()[B

    move-result-object v1

    invoke-virtual {p0}, Ljava/nio/ByteBuffer;->arrayOffset()I

    move-result v2

    invoke-virtual {p0}, Ljava/nio/ByteBuffer;->limit()I

    move-result p0

    invoke-direct {v0, v1, v2, p0}, Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;-><init>([BII)V

    return-object v0

    :cond_1e
    const/4 p0, 0x0

    return-object p0
.end method

.method public static toBytes(Ljava/nio/ByteBuffer;)[B
    .registers 3

    .line 119
    invoke-static {p0}, Lcom/bumptech/glide/util/ByteBufferUtil;->getSafeArray(Ljava/nio/ByteBuffer;)Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;

    move-result-object v0

    if-eqz v0, :cond_16

    .line 120
    iget v1, v0, Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;->offset:I

    if-nez v1, :cond_16

    iget v1, v0, Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;->limit:I

    iget-object v0, v0, Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;->data:[B

    array-length v0, v0

    if-ne v1, v0, :cond_16

    .line 121
    invoke-virtual {p0}, Ljava/nio/ByteBuffer;->array()[B

    move-result-object p0

    goto :goto_28

    .line 123
    :cond_16
    invoke-virtual {p0}, Ljava/nio/ByteBuffer;->asReadOnlyBuffer()Ljava/nio/ByteBuffer;

    move-result-object p0

    .line 124
    invoke-virtual {p0}, Ljava/nio/ByteBuffer;->limit()I

    move-result v0

    new-array v0, v0, [B

    const/4 v1, 0x0

    .line 125
    invoke-virtual {p0, v1}, Ljava/nio/ByteBuffer;->position(I)Ljava/nio/Buffer;

    .line 126
    invoke-virtual {p0, v0}, Ljava/nio/ByteBuffer;->get([B)Ljava/nio/ByteBuffer;

    move-object p0, v0

    :goto_28
    return-object p0
.end method

.method public static toFile(Ljava/nio/ByteBuffer;Ljava/io/File;)V
    .registers 6
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    const/4 v0, 0x0

    .line 65
    invoke-virtual {p0, v0}, Ljava/nio/ByteBuffer;->position(I)Ljava/nio/Buffer;

    const/4 v1, 0x0

    .line 69
    :try_start_5
    new-instance v2, Ljava/io/RandomAccessFile;

    const-string v3, "rw"

    invoke-direct {v2, p1, v3}, Ljava/io/RandomAccessFile;-><init>(Ljava/io/File;Ljava/lang/String;)V
    :try_end_c
    .catchall {:try_start_5 .. :try_end_c} :catchall_27

    .line 70
    :try_start_c
    invoke-virtual {v2}, Ljava/io/RandomAccessFile;->getChannel()Ljava/nio/channels/FileChannel;

    move-result-object v1

    .line 71
    invoke-virtual {v1, p0}, Ljava/nio/channels/FileChannel;->write(Ljava/nio/ByteBuffer;)I

    .line 72
    invoke-virtual {v1, v0}, Ljava/nio/channels/FileChannel;->force(Z)V

    .line 73
    invoke-virtual {v1}, Ljava/nio/channels/FileChannel;->close()V

    .line 74
    invoke-virtual {v2}, Ljava/io/RandomAccessFile;->close()V
    :try_end_1c
    .catchall {:try_start_c .. :try_end_1c} :catchall_25

    if-eqz v1, :cond_21

    .line 78
    :try_start_1e
    invoke-virtual {v1}, Ljava/nio/channels/FileChannel;->close()V
    :try_end_21
    .catch Ljava/io/IOException; {:try_start_1e .. :try_end_21} :catch_21

    .line 85
    :catch_21
    :cond_21
    :try_start_21
    invoke-virtual {v2}, Ljava/io/RandomAccessFile;->close()V
    :try_end_24
    .catch Ljava/io/IOException; {:try_start_21 .. :try_end_24} :catch_24

    :catch_24
    return-void

    :catchall_25
    move-exception p0

    goto :goto_29

    :catchall_27
    move-exception p0

    move-object v2, v1

    :goto_29
    if-eqz v1, :cond_2e

    .line 78
    :try_start_2b
    invoke-virtual {v1}, Ljava/nio/channels/FileChannel;->close()V
    :try_end_2e
    .catch Ljava/io/IOException; {:try_start_2b .. :try_end_2e} :catch_2e

    :catch_2e
    :cond_2e
    if-eqz v2, :cond_33

    .line 85
    :try_start_30
    invoke-virtual {v2}, Ljava/io/RandomAccessFile;->close()V
    :try_end_33
    .catch Ljava/io/IOException; {:try_start_30 .. :try_end_33} :catch_33

    .line 88
    :catch_33
    :cond_33
    throw p0
.end method

.method public static toStream(Ljava/nio/ByteBuffer;)Ljava/io/InputStream;
    .registers 2

    .line 133
    new-instance v0, Lcom/bumptech/glide/util/ByteBufferUtil$ByteBufferStream;

    invoke-direct {v0, p0}, Lcom/bumptech/glide/util/ByteBufferUtil$ByteBufferStream;-><init>(Ljava/nio/ByteBuffer;)V

    return-object v0
.end method

.method public static toStream(Ljava/nio/ByteBuffer;Ljava/io/OutputStream;)V
    .registers 5
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 95
    invoke-static {p0}, Lcom/bumptech/glide/util/ByteBufferUtil;->getSafeArray(Ljava/nio/ByteBuffer;)Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;

    move-result-object v0

    if-eqz v0, :cond_13

    .line 97
    iget-object p0, v0, Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;->data:[B

    iget v1, v0, Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;->offset:I

    iget v2, v0, Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;->offset:I

    iget v0, v0, Lcom/bumptech/glide/util/ByteBufferUtil$SafeArray;->limit:I

    add-int/2addr v2, v0

    invoke-virtual {p1, p0, v1, v2}, Ljava/io/OutputStream;->write([BII)V

    goto :goto_3e

    .line 99
    :cond_13
    sget-object v0, Lcom/bumptech/glide/util/ByteBufferUtil;->BUFFER_REF:Ljava/util/concurrent/atomic/AtomicReference;

    const/4 v1, 0x0

    invoke-virtual {v0, v1}, Ljava/util/concurrent/atomic/AtomicReference;->getAndSet(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object v0

    check-cast v0, [B

    if-nez v0, :cond_22

    const/16 v0, 0x4000

    .line 101
    new-array v0, v0, [B

    .line 104
    :cond_22
    :goto_22
    invoke-virtual {p0}, Ljava/nio/ByteBuffer;->remaining()I

    move-result v1

    if-lez v1, :cond_39

    .line 105
    invoke-virtual {p0}, Ljava/nio/ByteBuffer;->remaining()I

    move-result v1

    array-length v2, v0

    invoke-static {v1, v2}, Ljava/lang/Math;->min(II)I

    move-result v1

    const/4 v2, 0x0

    .line 106
    invoke-virtual {p0, v0, v2, v1}, Ljava/nio/ByteBuffer;->get([BII)Ljava/nio/ByteBuffer;

    .line 107
    invoke-virtual {p1, v0, v2, v1}, Ljava/io/OutputStream;->write([BII)V

    goto :goto_22

    .line 110
    :cond_39
    sget-object p0, Lcom/bumptech/glide/util/ByteBufferUtil;->BUFFER_REF:Ljava/util/concurrent/atomic/AtomicReference;

    invoke-virtual {p0, v0}, Ljava/util/concurrent/atomic/AtomicReference;->set(Ljava/lang/Object;)V

    :goto_3e
    return-void
.end method