public
class
DownsampleUtil
extends Object| java.lang.Object | |
| ↳ | com.facebook.imagepipeline.transcoder.DownsampleUtil |
Summary
| Constants | |||||||||||
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| int | DEFAULT_SAMPLE_SIZE | ||||||||||
| Public Methods | |||||||||||
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| static float | determineDownsampleRatio(RotationOptions rotationOptions, ResizeOptions resizeOptions, EncodedImage encodedImage) | ||||||||||
| static int |
determineSampleSize(RotationOptions rotationOptions, ResizeOptions resizeOptions, EncodedImage encodedImage, int maxBitmapSize)
Get the factor between the dimensions of the encodedImage (actual image) and the ones of the
imageRequest (requested size).
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| static int | determineSampleSizeJPEG(EncodedImage encodedImage, int pixelSize, int maxBitmapSizeInBytes) | ||||||||||
| static int | ratioToSampleSize(float ratio) | ||||||||||
| static int | ratioToSampleSizeJPEG(float ratio) | ||||||||||
| static int | roundToPowerOfTwo(int sampleSize) | ||||||||||
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[Expand]
Inherited Methods | |||||||||||
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From class
java.lang.Object
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Constants
public static final int DEFAULT_SAMPLE_SIZE
Constant Value:
1
(0x00000001)
Public Methods
public static float determineDownsampleRatio (RotationOptions rotationOptions, ResizeOptions resizeOptions, EncodedImage encodedImage)
public static int determineSampleSize (RotationOptions rotationOptions, ResizeOptions resizeOptions, EncodedImage encodedImage, int maxBitmapSize)
Get the factor between the dimensions of the encodedImage (actual image) and the ones of the imageRequest (requested size).
Parameters
| rotationOptions | the rotations options of the request |
|---|---|
| resizeOptions | the resize options of the request |
| encodedImage | the encoded image with the actual dimensions |
| maxBitmapSize | the maximum supported bitmap size (in pixels) when not specified in the encoded image resizeOptions. |