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optimize #36

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rijnb wants to merge 15 commits into from
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optimize #36

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47e0d32
Fix critical and major code review issues
rijnb May 28, 2026
ea028ff
updagted version
rijnb May 28, 2026
740bfec
docs: design spec for mapcodelib speed optimization
rijnb May 28, 2026
9813f71
docs: implementation plan for mapcodelib speed optimization
rijnb May 28, 2026
f1cb736
chore: pin perf baseline for feat/optimize
rijnb May 28, 2026
430bbba
perf: A1 — cache flags per loop iteration in hot paths
rijnb May 28, 2026
b9b3f2c
perf: A2 — reorder fitsInsideBoundaries to test longitude first
rijnb May 28, 2026
5246c79
revert: A2 — reorder fitsInsideBoundaries (caused regression)
rijnb May 28, 2026
1b01b82
perf: A3 — length-tracked result assembly in encoderEngine
rijnb May 28, 2026
753c337
perf: A4 — single division per iteration in encodeBase31
rijnb May 28, 2026
554af29
perf: B1+B2+B3 — add precomputed companion tables and one-time init
rijnb May 28, 2026
3416f87
perf: B4 — hot loops read from precomputed companion tables
rijnb May 28, 2026
2cdf52b
perf: B5 — DEBUG-build sanity check for companion tables
rijnb May 28, 2026
9f99fa8
docs: record final perf results for feat/optimize branch
rijnb May 28, 2026
d5778ab
docs: add perf results table to docs/superpowers
rijnb May 28, 2026
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updagted version
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@rijnb
rijnb committed May 28, 2026
commit ea028ffd6f2fb109e1c55db592ea51a5a5a97106
2 changes: 1 addition & 1 deletion mapcodelib/mapcoder.h
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Expand Up @@ -58,7 +58,7 @@ extern "C" {
#define MAPCODE_SUPPORT_LANGUAGE_UK
#endif

#define MAPCODE_C_VERSION "2.5.6"
#define MAPCODE_C_VERSION "2.5.7"
#define UWORD uint16_t // 2-byte unsigned integer.

#define MAX_NR_OF_MAPCODE_RESULTS 22 // Max. number of results ever returned by encoder (e.g. for 26.904899, 95.138515).
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