Faster color conversions #157
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…oids bounds checks in hot loops
…ed in slice length
197g
approved these changes
Jun 27, 2020
wartmanm
pushed a commit
to wartmanm/jpeg-decoder
that referenced
this pull request
Oct 4, 2021
Faster color conversions
# for free
to join this conversation on GitHub.
Already have an account?
# to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Speeds up end-to-end decoding by 5% in single-threaded mode. Considerably less than that in multi-threaded mode which is bottlenecked by #155 instead.
Another similar improvement will be possible once the float-to-int conversions defined as saturating will actually reach stable channel (rust-lang/rust#71269) and the crate's MSVR reaches this version.