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perf(graphics): optionally decode large progressive regions in parallel #2036

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perf(graphics): optionally decode large progressive regions in parallel #2036

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0185f27
perf(graphics): read RLGR bits through a 64-bit window
willie Sep 28, 2026
24cd5c4
perf(graphics): decode a large progressive region's tiles in parallel
willie Sep 28, 2026
0828b3d
test(graphics): cover the RLGR bit reader
willie Sep 28, 2026
2ab50eb
fix(graphics): leave no tile state for an unreferenced difference tile
willie Sep 28, 2026
d61c641
test(graphics): compare region-wide and per-tile progressive decoding
willie Sep 28, 2026
b68a877
build(graphics): make the rayon feature opt-in
willie Sep 28, 2026
b454b8b
test(graphics): cover a region with failing tiles
willie Sep 28, 2026
e4a57ab
ci(xtask): test ironrdp-graphics with rayon
willie Sep 28, 2026
127e6bf
refactor(graphics): derive the RLGR reader's length from its data
willie Oct 13, 2026
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1 change: 1 addition & 0 deletions Cargo.lock
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5 changes: 5 additions & 0 deletions crates/ironrdp-graphics/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,10 @@ categories.workspace = true
doctest = false
# test = false

[features]
# Decodes large progressive regions' tiles on several threads.
rayon = ["dep:rayon"]

[dependencies]
bit_field = "0.10"
bitflags = "2.11"
Expand All @@ -25,6 +29,7 @@ ironrdp-pdu = { path = "../ironrdp-pdu", version = "0.9", features = ["std"] } #
byteorder = "1.5" # TODO: remove
num-derive.workspace = true # TODO: remove
num-traits.workspace = true # TODO: remove
rayon = { version = "1.12", optional = true }
yuv = { version = "0.8", features = ["rdp"] }
wide = "0.7" # portable SIMD for the inverse DWT (wasm/x86/ARM); `std::simd` is still nightly-only

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