minor greedy mod

facebook · Nov 6, 2015 · 444873f · 444873f
1 parent 805a52a
commit 444873f
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Showing 2 changed files with 2 additions and 1 deletion.
diff --git a/lib/zstdhc.c b/lib/zstdhc.c
@@ -794,6 +794,7 @@ size_t ZSTD_HC_compressBlock_greedy(ZSTD_HC_CCtx* ctx, void* dst, size_t maxDstS
             size_t offset=999999;
             size_t matchLength = ZSTD_HC_HcFindBestMatch_selectMLS(ctx, ip, iend, &offset, maxSearches, mls);
             if (!matchLength) { ip++; continue; }
+            while ((ip>anchor) && (ip-offset>ctx->base) && (ip[-1] == ip[-1-offset])) { ip--; }  /* catch up */
             /* store sequence */
             {
                 size_t litLength = ip-anchor;

diff --git a/programs/paramgrill.c b/programs/paramgrill.c
@@ -997,7 +997,7 @@ int main(int argc, char** argv)
                                 argument++;
                                 while ((*argument>= '0') && (*argument<='9'))
                                     cLevel *= 10, cLevel += *argument++ - '0';
-                                if (cLevel < 2) cLevel = 2;
+                                if (cLevel < 1) cLevel = 1;
                                 if (cLevel > ZSTD_HC_MAX_CLEVEL) cLevel = ZSTD_HC_MAX_CLEVEL;
                                 g_params = g_seedParams[cLevel];
                                 continue;