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Optimize away deltas of 0

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This commit is contained in:
Eric Fischer
2014-09-23 10:37:18 -07:00
parent 581105dc9a
commit 7bb79dab8e
1 changed files with 7 additions and 5 deletions
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tile.cc
+7 -5
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@@ -130,12 +130,14 @@ void write_tile(struct index *start, struct index *end, char *metabase, unsigned
int dx = wwx - px; int dx = wwx - px;
int dy = wwy - py; int dy = wwy - py;
feature->add_geometry((dx << 1) ^ (dx >> 31)); if (dx != 0 || dy != 0 || length == 0) {
feature->add_geometry((dy << 1) ^ (dy >> 31)); feature->add_geometry((dx << 1) ^ (dx >> 31));
feature->add_geometry((dy << 1) ^ (dy >> 31));
px = wwx; px = wwx;
py = wwy; py = wwy;
length++; length++;
}
//printf("%lld,%lld ", wwx, wwy); //printf("%lld,%lld ", wwx, wwy);
} else if (op == VT_CLOSEPATH) { } else if (op == VT_CLOSEPATH) {