PlatformDecoder
| com.facebook.imagepipeline.platform.PlatformDecoder |
 Known Indirect Subclasses
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Summary
| Public Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| abstract CloseableReference<Bitmap> |
decodeFromEncodedImage(EncodedImage encodedImage, Bitmap.Config bitmapConfig, Rect regionToDecode)
Creates a bitmap from encoded bytes.
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| abstract CloseableReference<Bitmap> |
decodeFromEncodedImageWithColorSpace(EncodedImage encodedImage, Bitmap.Config bitmapConfig, Rect regionToDecode, ColorSpace colorSpace)
Creates a bitmap from encoded bytes.
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| abstract CloseableReference<Bitmap> |
decodeJPEGFromEncodedImage(EncodedImage encodedImage, Bitmap.Config bitmapConfig, Rect regionToDecode, int length)
Creates a bitmap from encoded JPEG bytes.
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| abstract CloseableReference<Bitmap> |
decodeJPEGFromEncodedImageWithColorSpace(EncodedImage encodedImage, Bitmap.Config bitmapConfig, Rect regionToDecode, int length, ColorSpace colorSpace)
Creates a bitmap from encoded JPEG bytes.
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Public Methods
public abstract CloseableReference<Bitmap> decodeFromEncodedImage (EncodedImage encodedImage, Bitmap.Config bitmapConfig, Rect regionToDecode)
Creates a bitmap from encoded bytes. Supports JPEG but callers should use decodeJPEGFromEncodedImage(EncodedImage, Bitmap.Config, Rect, int) for partial JPEGs. In addition, a region to decode can be supplied
in order to minimize memory usage. NOTE: Not all platform decoders necessarily support
supplying specific regions.
Note: This needs to be kept because of dependencies issues.
Parameters
| encodedImage | the reference to the encoded image with the reference to the encoded bytes |
|---|---|
| bitmapConfig | the android.graphics.Bitmap.Config used to create the decoded Bitmap |
| regionToDecode | optional image region to decode or null to decode the whole image |
Returns
- the bitmap
Throws
| if the pool is full | |
| OutOfMemoryError | if the Bitmap cannot be allocated |
public abstract CloseableReference<Bitmap> decodeFromEncodedImageWithColorSpace (EncodedImage encodedImage, Bitmap.Config bitmapConfig, Rect regionToDecode, ColorSpace colorSpace)
Creates a bitmap from encoded bytes. Supports JPEG but callers should use decodeJPEGFromEncodedImage(EncodedImage, Bitmap.Config, Rect, int) for partial JPEGs. In addition, a region to decode can be supplied
in order to minimize memory usage. NOTE: Not all platform decoders necessarily support
supplying specific regions.
Parameters
| encodedImage | the reference to the encoded image with the reference to the encoded bytes |
|---|---|
| bitmapConfig | the android.graphics.Bitmap.Config used to create the decoded Bitmap |
| regionToDecode | optional image region to decode or null to decode the whole image |
| colorSpace | the target color space of the decoded bitmap, must be one of the named color space in android.graphics.ColorSpace.Named. If null, then SRGB color space is assumed if the SDK version >= 26. |
Returns
- the bitmap
Throws
| if the pool is full | |
| OutOfMemoryError | if the Bitmap cannot be allocated |
public abstract CloseableReference<Bitmap> decodeJPEGFromEncodedImage (EncodedImage encodedImage, Bitmap.Config bitmapConfig, Rect regionToDecode, int length)
Creates a bitmap from encoded JPEG bytes. Supports a partial JPEG image. In addition, a region to decode can be supplied in order to minimize memory usage. NOTE: Not all platform decoders necessarily support supplying specific regions.
Note: This needs to be kept because of dependencies issues.
Parameters
| encodedImage | the reference to the encoded image with the reference to the encoded bytes |
|---|---|
| bitmapConfig | the android.graphics.Bitmap.Config used to create the decoded Bitmap |
| regionToDecode | optional image region to decode or null to decode the whole image. |
| length | the number of encoded bytes in the buffer |
Returns
- the bitmap
Throws
| if the pool is full | |
| OutOfMemoryError | if the Bitmap cannot be allocated |
public abstract CloseableReference<Bitmap> decodeJPEGFromEncodedImageWithColorSpace (EncodedImage encodedImage, Bitmap.Config bitmapConfig, Rect regionToDecode, int length, ColorSpace colorSpace)
Creates a bitmap from encoded JPEG bytes. Supports a partial JPEG image. In addition, a region to decode can be supplied in order to minimize memory usage. NOTE: Not all platform decoders necessarily support supplying specific regions.
Parameters
| encodedImage | the reference to the encoded image with the reference to the encoded bytes |
|---|---|
| bitmapConfig | the android.graphics.Bitmap.Config used to create the decoded Bitmap |
| regionToDecode | optional image region to decode or null to decode the whole image. |
| length | the number of encoded bytes in the buffer |
| colorSpace | the target color space of the decoded bitmap, must be one of the named color space in android.graphics.ColorSpace.Named. If null, then SRGB color space is assumed if the SDK version >= 26. |
Returns
- the bitmap
Throws
| if the pool is full | |
| OutOfMemoryError | if the Bitmap cannot be allocated |