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rustdesk/flutter/lib/desktop
rustdeskandClaude Opus 5.5 3a1785d3c3 cursor: keep the shapes compressed in the core, and only the one in use in the UI
The UI kept every shape as a ui.Image, one raw copy each, for as long
as the session lasted, because the peer sends a shape once and a
shape might have to be drawn again. The core receives the shapes
compressed, at a few hundredths of that, and now keeps them so:
Session::cursor_shapes holds each shape that decoded, as the peer sent
it, under the id the UI knows it by. The colors are copied, since the
message's may be a slice of a larger received buffer.

The UI keeps a ui.Image for the shape in use alone. A shape shown
again at a raster its native cursor has needs no pixels at all; for a
raster it lacks, for painting it, or for the window a tab moved to,
the UI asks the core through session_get_cursor_shape, which
decompresses and checks the shape again with decode_cursor_data, the
same size and decompression limits as on arrival. A shape the core
cannot give is not asked for again until the peer sends it. A tab
move now carries only the id in use, and nothing is read back from
the GPU.

The web core keeps the shapes the same way and gives them back through
getCursorShape.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EZ49AbZJYfm8NTp5yDPMab
2026-09-23 19:52:42 +08:00
..
2025-07-01 13:12:55 +08:00