linebender / linebender/tiny-skia
Feature request: Mask union
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- Dominant language
- Rust
- Stars
- 1.6k
- Forks
- 99
- Avg merge
- 2h 52m
- Merged PRs (30d)
- 1
Description
I have an app where I load layers from SVGs, repaint them various colors, stack them, and output the results as PNGs. To minimize the memory consumed by intermediate results, I always union together masks that are being painted the same color for the same output PNG, unless I need to avoid doing so for Z-order reasons. Thus, being able to take the union of two masks via a tiny-skia routine rather than a loop I had to write myself, would be very useful.
As well, I could get by with fewer SVGs given subtraction and XOR operations on masks.
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue names no files or tests; start by locating tiny-skia's mask APIs and existing raster-operation coverage. Define the expected union, subtraction, and XOR behavior, including the stated Z-order exception, and finish when these operations are available through a tiny-skia routine with tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- computer-graphics
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100