diegoripley/tippecanoe
1
0
Fork 0
mirror of https://github.com/felt/tippecanoe.git synced 2026-10-03 17:05:41 +02:00
Code Issues Packages Projects Releases Wiki Activity

Use the faster bit interleave for encode_quadkey itself

Browse Source 
encode_vertex() computed exactly the same thing as encode_quadkey(),
so there is no reason to have both. Give encode_quadkey() the branch-free
implementation, which also speeds up the default encode_index, and have
the shared node code call it directly. The unit test now compares it
against the old bit-at-a-time loop and checks that decode_quadkey()
reverses it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01P2nBqZisxNQfmEmon3vE9v
This commit is contained in:
Claude
2026-09-23 20:02:49 +00:00
parent e1795ebe32
commit 58ad6e3008
6 changed files with 39 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files
serial.cpp
+1 -1
View File
@@ -475,7 +475,7 @@ static void add_scaled_node(struct reader *r, serialization_state *sst, draw g)
long long y = SHIFT_LEFT(g.y);
struct node n;
n.index = encode_vertex((unsigned) x, (unsigned) y);
n.index = encode_quadkey((unsigned) x, (unsigned) y);
fwrite_check((char *) &n, sizeof(struct node), 1, r->nodefile, &r->nodepos, sst->fname);
}