barcodes: 29 performance units from the qr review round, results identical - #327

Merged

shreeve merged 32 commits into

mainfrom

barcodes-perf2

Sep 18, 2026

Commits on Sep 18, 2026

barcodes: stage probes for the decoder, the pixel pipeline and every encoder output
shreeve
committed
8c99ea2
barcodes: walk vertical finder runs down the column without bit()
shreeve
committed
13b9203
barcodes: leave cross() as soon as a run cannot pass the ratio
shreeve
committed
0d51240
barcodes: keep the current word resident across finder runs in findRows
shreeve
committed
d7ed3a7
barcodes: sample the module grid without per-module calls
shreeve
committed
efc0e45
barcodes: walk codewords with packed column masks and whole-byte stores
shreeve
committed
1cae133
barcodes: read payload fields through a three-byte window
shreeve
committed
484d652
barcodes: fold the Reed-Solomon remainder four coefficients a word
shreeve
committed
2901351
barcodes: derive a damaged block's syndromes from the remainder register
shreeve
committed
1e1cbbc
barcodes: slide the 5x5 threshold smoother along each block row
shreeve
committed
77e2586
barcodes: wipe each luma arena once in clean()
shreeve
committed
4cce472
barcodes: grow finder records on demand
shreeve
committed
98cbdf9
barcodes: size version scratch to the symbol actually attempted
shreeve
committed
347e857
barcodes: fold three-byte RGB input a word at a time
shreeve
committed
e87c573
barcodes: cache SVG path commands per output width
shreeve
committed
da87980
barcodes: append a run of adjacent dark modules as one SVG string
shreeve
committed
9548d8e
barcodes: append ASCII glyphs four cells at a time
shreeve
committed
55ce9cd
barcodes: copy GIF rows whole, then spread them into LZW chunks
shreeve
committed
de347e6
barcodes: validate text against the value table
shreeve
committed
7f3c5fa
barcodes: build raw rows from the packed words
shreeve
committed
100cee3
barcodes: place data bits two at a time
shreeve
committed
67d61c2
barcodes: take numeric groups straight from the code points
shreeve
committed
c5b4bc1
barcodes: keep Code 128 line buffers across calls
shreeve
committed
ac416d6
barcodes: sample axis scan lines through whole-span copies
shreeve
committed
cc31eb6
barcodes: route PDF417 axis rays through sampleLine
shreeve
committed
f4f7851
barcodes: correlate four gradient products per step in barShift
shreeve
committed
419bbc7
barcodes: find edges without a closure per scan line
shreeve
committed
b2104e0
barcodes: test the widest pair of runs before a PDF417 anchor match
shreeve
committed
b877dd9
barcodes: one PDF417 anchor sweep per runs array
shreeve
committed
23f9b22
barcodes: performance tables remeasured
shreeve
committed
adc4c51
barcodes: the race includes ZXing, qr with pull request 39 and the package before its review round
shreeve
committed
5b51783
barcodes: the race states each column as a speedup of this package
shreeve
committed
e624bb6

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barcodes: 29 performance units from the qr review round, results identical - #327

barcodes: 29 performance units from the qr review round, results identical#327
shreeve merged 32 commits into
mainfrom
barcodes-perf2

Commits on Sep 18, 2026

barcodes: stage probes for the decoder, the pixel pipeline and every encoder output

barcodes: walk vertical finder runs down the column without bit()

barcodes: leave cross() as soon as a run cannot pass the ratio

barcodes: keep the current word resident across finder runs in findRows

barcodes: sample the module grid without per-module calls

barcodes: walk codewords with packed column masks and whole-byte stores

barcodes: read payload fields through a three-byte window

barcodes: fold the Reed-Solomon remainder four coefficients a word

barcodes: derive a damaged block's syndromes from the remainder register

barcodes: slide the 5x5 threshold smoother along each block row

barcodes: wipe each luma arena once in clean()

barcodes: grow finder records on demand

barcodes: size version scratch to the symbol actually attempted

barcodes: fold three-byte RGB input a word at a time

barcodes: cache SVG path commands per output width

barcodes: append a run of adjacent dark modules as one SVG string

barcodes: append ASCII glyphs four cells at a time

barcodes: copy GIF rows whole, then spread them into LZW chunks

barcodes: validate text against the value table

barcodes: build raw rows from the packed words

barcodes: place data bits two at a time

barcodes: take numeric groups straight from the code points

barcodes: keep Code 128 line buffers across calls

barcodes: sample axis scan lines through whole-span copies

barcodes: route PDF417 axis rays through sampleLine

barcodes: correlate four gradient products per step in barShift

barcodes: find edges without a closure per scan line

barcodes: test the widest pair of runs before a PDF417 anchor match

barcodes: one PDF417 anchor sweep per runs array

barcodes: performance tables remeasured

barcodes: the race includes ZXing, qr with pull request 39 and the package before its review round

barcodes: the race states each column as a speedup of this package