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authorKevin O'Connor <kevin@koconnor.net>2016-12-06 19:01:00 -0500
committerKevin O'Connor <kevin@koconnor.net>2016-12-06 19:01:00 -0500
commit83f7d702e7428c394b601b211dfa3fbb615267ff (patch)
tree02aab228eb7b47d565d673c65729a7a0dc57acf0
parent12d4888321bdf44e2a6912b1c58188e748d99a9d (diff)
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stepcompress: Encourage add=0 in compress_bisect_add()
Only use a non-zero 'add' if it actually extends the number of steps the command covers. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
-rw-r--r--klippy/stepcompress.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/klippy/stepcompress.c b/klippy/stepcompress.c
index 643e0083..b29382c9 100644
--- a/klippy/stepcompress.c
+++ b/klippy/stepcompress.c
@@ -130,7 +130,7 @@ compress_bisect_add(struct stepcompress *sc)
struct points point = minmax_point(sc, sc->queue_pos);
int32_t outer_mininterval = point.minp, outer_maxinterval = point.maxp;
int32_t add = 0, minadd = -0x8001, maxadd = 0x8000;
- int32_t bestinterval = 0, bestcount = 1, bestadd = 0, bestreach = INT32_MIN;
+ int32_t bestinterval = 0, bestcount = 1, bestadd = 1, bestreach = INT32_MIN;
int32_t checked_count = 0;
for (;;) {
@@ -162,7 +162,7 @@ compress_bisect_add(struct stepcompress *sc)
// Check if this is the best sequence found so far
int32_t reach = add*(addfactor-count) + maxinterval*count;
- if (reach > bestreach) {
+ if (reach > bestreach && (bestadd || count > bestcount + bestcount/16)) {
bestinterval = maxinterval;
bestcount = count;
bestadd = add;