Commit Graph

4 Commits

Author SHA1 Message Date
Christophe Beyls f69cae2315
Optimize I/O code using Okio - part 2 (#4372)
- Read license resource using Okio inside a coroutine (instead of the
main thread) in `LicenseActivity`
- Use Okio and its buffer system to copy ContentProvider streams and
files to a temporary file in `MediaUploader.prepareMedia()`
- Properly close the input file after copying it to a temporary file in
`MediaUploader.prepareMedia()`
- Properly close sink in case of null body source during file copy in
`Uri.copyToFolder()` in `DraftHelper.kt`
- Add comment explaining the current value of `DEFAULT_CHUNK_SIZE` in
`UriRequestBody.kt` and indent the file properly
- Replace hardcoded `Charset` and `Int` byte size with the proper
constants, and align the `hashCode()` implementation with other
`BitmapTransformation` implementations in
`CompositeWithOpaqueBackground`
- Properly close `InputStream` in case of error during Bitmap size
decoding in `getImageSquarePixels()`
- return `Int` instead of `Long` in `getImageSquarePixels()`, since the
current code simply converts the `Int` result to a `Long` _after_
multiplication and not before (and `Int.MAX_VALUE` is already way above
the maximum number of pixels a decoded Bitmap could return)
- Simplify `getImageOrientation()`
- Add explicit dependency to the Okio library and upgrade it to its
latest version.
2024-04-14 16:39:29 +02:00
Konrad Pozniak db27186b5c
fix memory leak in CompositeWithOpaqueBackground (#4150)
Found with Leak canary: The transformation ends up in Glide's memory
cache and leaks whole Activities through the view -> context reference.

This fixes the problem by removing the background detection logic (so
the view reference is no longer needed) and setting the background
directly instead. Looks exactly as before.
2023-12-10 07:37:54 +01:00
Nik Clayton 58521b3370
Remove unnecessary log message in CompositeWithOpaqueBackground (#3955) 2023-08-14 12:00:21 +02:00
Nik Clayton 4169dc34c0
Composite semi-transparent avatars over a solid background (#3874)
Avatars that are semi-transparent are a problem when viewing a thread,
as the line that connects different statuses in the same thread is drawn
underneath the avatar and is visible.

Fix this with a CompositeWithOpaqueBackground Glide transformation that:

1. Extracts the alpha channel from the avatar image
2. Converts the alpha to a 1bpp mask
3. Draws that mask on a new bitmap, with the appropriate background
colour
4. Draws the original bitmap on top of that

So any partially transparent areas of the original image are drawn over
a solid background colour, so anything drawn under them will not appear.
2023-08-08 23:09:59 +02:00