DownsampleUtil.smali

.class public Lcom/facebook/imagepipeline/transcoder/DownsampleUtil;
.super Ljava/lang/Object;
.source "SourceFile"


# static fields
.field public static final DEFAULT_SAMPLE_SIZE:I = 0x1

.field private static final INTERVAL_ROUNDING:F = 0.33333334f


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

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

    return-void
.end method

.method public static determineDownsampleRatio(Lcom/facebook/imagepipeline/common/RotationOptions;Lcom/facebook/imagepipeline/common/ResizeOptions;Lcom/facebook/imagepipeline/image/EncodedImage;)F
    .registers 10
    .annotation build Lcom/facebook/common/internal/VisibleForTesting;
    .end annotation

    .line 1
    invoke-static {p2}, Lcom/facebook/imagepipeline/image/EncodedImage;->isMetaDataAvailable(Lcom/facebook/imagepipeline/image/EncodedImage;)Z

    move-result v0

    invoke-static {v0}, Lcom/facebook/common/internal/Preconditions;->checkArgument(Z)V

    if-eqz p1, :cond_93

    .line 2
    iget v0, p1, Lcom/facebook/imagepipeline/common/ResizeOptions;->height:I

    if-lez v0, :cond_93

    iget v0, p1, Lcom/facebook/imagepipeline/common/ResizeOptions;->width:I

    if-lez v0, :cond_93

    .line 3
    invoke-virtual {p2}, Lcom/facebook/imagepipeline/image/EncodedImage;->getWidth()I

    move-result v0

    if-eqz v0, :cond_93

    invoke-virtual {p2}, Lcom/facebook/imagepipeline/image/EncodedImage;->getHeight()I

    move-result v0

    if-nez v0, :cond_1f

    goto/16 :goto_93

    .line 4
    :cond_1f
    invoke-static {p0, p2}, Lcom/facebook/imagepipeline/transcoder/DownsampleUtil;->getRotationAngle(Lcom/facebook/imagepipeline/common/RotationOptions;Lcom/facebook/imagepipeline/image/EncodedImage;)I

    move-result p0

    const/16 v0, 0x5a

    const/4 v1, 0x0

    const/4 v2, 0x1

    if-eq p0, v0, :cond_30

    const/16 v0, 0x10e

    if-ne p0, v0, :cond_2e

    goto :goto_30

    :cond_2e
    const/4 p0, 0x0

    goto :goto_31

    :cond_30
    :goto_30
    const/4 p0, 0x1

    :goto_31
    if-eqz p0, :cond_38

    .line 5
    invoke-virtual {p2}, Lcom/facebook/imagepipeline/image/EncodedImage;->getHeight()I

    move-result v0

    goto :goto_3c

    :cond_38
    invoke-virtual {p2}, Lcom/facebook/imagepipeline/image/EncodedImage;->getWidth()I

    move-result v0

    :goto_3c
    if-eqz p0, :cond_43

    .line 6
    invoke-virtual {p2}, Lcom/facebook/imagepipeline/image/EncodedImage;->getWidth()I

    move-result p0

    goto :goto_47

    :cond_43
    invoke-virtual {p2}, Lcom/facebook/imagepipeline/image/EncodedImage;->getHeight()I

    move-result p0

    .line 7
    :goto_47
    iget p2, p1, Lcom/facebook/imagepipeline/common/ResizeOptions;->width:I

    int-to-float p2, p2

    int-to-float v3, v0

    div-float/2addr p2, v3

    .line 8
    iget v3, p1, Lcom/facebook/imagepipeline/common/ResizeOptions;->height:I

    int-to-float v3, v3

    int-to-float v4, p0

    div-float/2addr v3, v4

    .line 9
    invoke-static {p2, v3}, Ljava/lang/Math;->max(FF)F

    move-result v4

    const/4 v5, 0x7

    new-array v5, v5, [Ljava/lang/Object;

    .line 10
    iget v6, p1, Lcom/facebook/imagepipeline/common/ResizeOptions;->width:I

    .line 11
    invoke-static {v6}, Ljava/lang/Integer;->valueOf(I)Ljava/lang/Integer;

    move-result-object v6

    aput-object v6, v5, v1

    iget p1, p1, Lcom/facebook/imagepipeline/common/ResizeOptions;->height:I

    .line 12
    invoke-static {p1}, Ljava/lang/Integer;->valueOf(I)Ljava/lang/Integer;

    move-result-object p1

    aput-object p1, v5, v2

    const/4 p1, 0x2

    .line 13
    invoke-static {v0}, Ljava/lang/Integer;->valueOf(I)Ljava/lang/Integer;

    move-result-object v0

    aput-object v0, v5, p1

    const/4 p1, 0x3

    .line 14
    invoke-static {p0}, Ljava/lang/Integer;->valueOf(I)Ljava/lang/Integer;

    move-result-object p0

    aput-object p0, v5, p1

    const/4 p0, 0x4

    .line 15
    invoke-static {p2}, Ljava/lang/Float;->valueOf(F)Ljava/lang/Float;

    move-result-object p1

    aput-object p1, v5, p0

    const/4 p0, 0x5

    .line 16
    invoke-static {v3}, Ljava/lang/Float;->valueOf(F)Ljava/lang/Float;

    move-result-object p1

    aput-object p1, v5, p0

    const/4 p0, 0x6

    .line 17
    invoke-static {v4}, Ljava/lang/Float;->valueOf(F)Ljava/lang/Float;

    move-result-object p1

    aput-object p1, v5, p0

    const-string p0, "DownsampleUtil"

    const-string p1, "Downsample - Specified size: %dx%d, image size: %dx%d ratio: %.1f x %.1f, ratio: %.3f"

    .line 18
    invoke-static {p0, p1, v5}, Lcom/facebook/common/logging/FLog;->v(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)V

    return v4

    :cond_93
    :goto_93
    const/high16 p0, 0x3f800000    # 1.0f

    return p0
.end method

.method public static determineSampleSize(Lcom/facebook/imagepipeline/common/RotationOptions;Lcom/facebook/imagepipeline/common/ResizeOptions;Lcom/facebook/imagepipeline/image/EncodedImage;I)I
    .registers 6

    .line 1
    invoke-static {p2}, Lcom/facebook/imagepipeline/image/EncodedImage;->isMetaDataAvailable(Lcom/facebook/imagepipeline/image/EncodedImage;)Z

    move-result v0

    if-nez v0, :cond_8

    const/4 p0, 0x1

    return p0

    .line 2
    :cond_8
    invoke-static {p0, p1, p2}, Lcom/facebook/imagepipeline/transcoder/DownsampleUtil;->determineDownsampleRatio(Lcom/facebook/imagepipeline/common/RotationOptions;Lcom/facebook/imagepipeline/common/ResizeOptions;Lcom/facebook/imagepipeline/image/EncodedImage;)F

    move-result p0

    .line 3
    invoke-virtual {p2}, Lcom/facebook/imagepipeline/image/EncodedImage;->getImageFormat()Lcom/facebook/imageformat/ImageFormat;

    move-result-object v0

    sget-object v1, Lcom/facebook/imageformat/DefaultImageFormats;->JPEG:Lcom/facebook/imageformat/ImageFormat;

    if-ne v0, v1, :cond_19

    .line 4
    invoke-static {p0}, Lcom/facebook/imagepipeline/transcoder/DownsampleUtil;->ratioToSampleSizeJPEG(F)I

    move-result p0

    goto :goto_1d

    .line 5
    :cond_19
    invoke-static {p0}, Lcom/facebook/imagepipeline/transcoder/DownsampleUtil;->ratioToSampleSize(F)I

    move-result p0

    .line 6
    :goto_1d
    invoke-virtual {p2}, Lcom/facebook/imagepipeline/image/EncodedImage;->getHeight()I

    move-result v0

    invoke-virtual {p2}, Lcom/facebook/imagepipeline/image/EncodedImage;->getWidth()I

    move-result v1

    invoke-static {v0, v1}, Ljava/lang/Math;->max(II)I

    move-result v0

    if-eqz p1, :cond_2e

    .line 7
    iget p1, p1, Lcom/facebook/imagepipeline/common/ResizeOptions;->maxBitmapSize:F

    goto :goto_2f

    :cond_2e
    int-to-float p1, p3

    .line 8
    :goto_2f
    div-int p3, v0, p0

    int-to-float p3, p3

    cmpl-float p3, p3, p1

    if-lez p3, :cond_44

    .line 9
    invoke-virtual {p2}, Lcom/facebook/imagepipeline/image/EncodedImage;->getImageFormat()Lcom/facebook/imageformat/ImageFormat;

    move-result-object p3

    sget-object v1, Lcom/facebook/imageformat/DefaultImageFormats;->JPEG:Lcom/facebook/imageformat/ImageFormat;

    if-ne p3, v1, :cond_41

    mul-int/lit8 p0, p0, 0x2

    goto :goto_2f

    :cond_41
    add-int/lit8 p0, p0, 0x1

    goto :goto_2f

    :cond_44
    return p0
.end method

.method private static getRotationAngle(Lcom/facebook/imagepipeline/common/RotationOptions;Lcom/facebook/imagepipeline/image/EncodedImage;)I
    .registers 3

    .line 1
    invoke-virtual {p0}, Lcom/facebook/imagepipeline/common/RotationOptions;->useImageMetadata()Z

    move-result p0

    const/4 v0, 0x0

    if-nez p0, :cond_8

    return v0

    .line 2
    :cond_8
    invoke-virtual {p1}, Lcom/facebook/imagepipeline/image/EncodedImage;->getRotationAngle()I

    move-result p0

    if-eqz p0, :cond_1a

    const/16 p1, 0x5a

    if-eq p0, p1, :cond_1a

    const/16 p1, 0xb4

    if-eq p0, p1, :cond_1a

    const/16 p1, 0x10e

    if-ne p0, p1, :cond_1b

    :cond_1a
    const/4 v0, 0x1

    .line 3
    :cond_1b
    invoke-static {v0}, Lcom/facebook/common/internal/Preconditions;->checkArgument(Z)V

    return p0
.end method

.method public static ratioToSampleSize(F)I
    .registers 9
    .annotation build Lcom/facebook/common/internal/VisibleForTesting;
    .end annotation

    const/4 v0, 0x1

    const v1, 0x3f2aaaab

    cmpl-float v1, p0, v1

    if-lez v1, :cond_9

    return v0

    :cond_9
    const/4 v1, 0x2

    :goto_a
    int-to-double v2, v1

    const-wide/high16 v4, 0x4000000000000000L    # 2.0

    invoke-static {v2, v3, v4, v5}, Ljava/lang/Math;->pow(DD)D

    move-result-wide v4

    sub-double/2addr v4, v2

    const-wide/high16 v6, 0x3ff0000000000000L    # 1.0

    div-double v4, v6, v4

    div-double/2addr v6, v2

    const-wide v2, 0x3fd5555560000000L    # 0.3333333432674408

    mul-double v4, v4, v2

    add-double/2addr v4, v6

    float-to-double v2, p0

    cmpg-double v6, v4, v2

    if-gtz v6, :cond_26

    sub-int/2addr v1, v0

    return v1

    :cond_26
    add-int/lit8 v1, v1, 0x1

    goto :goto_a
.end method

.method public static ratioToSampleSizeJPEG(F)I
    .registers 8
    .annotation build Lcom/facebook/common/internal/VisibleForTesting;
    .end annotation

    const v0, 0x3f2aaaab

    cmpl-float v0, p0, v0

    if-lez v0, :cond_9

    const/4 p0, 0x1

    return p0

    :cond_9
    const/4 v0, 0x2

    :goto_a
    const-wide/high16 v1, 0x3ff0000000000000L    # 1.0

    mul-int/lit8 v3, v0, 0x2

    int-to-double v4, v3

    div-double/2addr v1, v4

    const-wide v4, 0x3fd5555560000000L    # 0.3333333432674408

    mul-double v4, v4, v1

    add-double/2addr v4, v1

    float-to-double v1, p0

    cmpg-double v6, v4, v1

    if-gtz v6, :cond_1e

    return v0

    :cond_1e
    move v0, v3

    goto :goto_a
.end method

.method public static roundToPowerOfTwo(I)I
    .registers 2
    .annotation build Lcom/facebook/common/internal/VisibleForTesting;
    .end annotation

    const/4 v0, 0x1

    :goto_1
    if-lt v0, p0, :cond_4

    return v0

    :cond_4
    mul-int/lit8 v0, v0, 0x2

    goto :goto_1
.end method