Martin Robinson 8be7ec73fd pixels: Split Snapshot into SharedSnapshot and Snapshot (#40136) ...

This splits `Snapshot` into two structs:

- `Snapshot`: A non-serializable owned image buffer that might contain
  either shared memory or a `Vec<u8>`. When mutated the shared memory
  version is converted into a `Vec<u8>` avoiding a copy of the data
  until absolutely necessary.
- `SharedSnapshot`: A serialzable version of `Snapshot` that contains
  only shared memory and is suitable for sending across IPC channels.
  This version is cheaply convertible from and to owned `Snapshot`s as
  long as the source is also a shared memory `Snapshot`.

In addition, it does copyless conversions of `RasterImage` into
`Snapshot`s (including for frame offsets in animated images). Finally,
there are a few minor changes to try harder not to have to do a
`transform()` operation.

Testing: This should not change observable behavior, so is covered by
existing
tests. It should come with a mild performance improvement and open up
the
opportunity for others.
Fixes: #36594.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>

2025-10-26 15:03:30 +00:00

..

mod.rs

script: implement structured cloning for ImageData (#40084)

2025-10-23 07:57:01 +00:00

serializable.rs

pixels: Split Snapshot into SharedSnapshot and Snapshot (#40136)

2025-10-26 15:03:30 +00:00

transferable.rs

canvas: Make OffscreenCanvas transferable (without placeholder) (#37872)

2025-07-08 14:47:29 +00:00