From 586de1f5b1bf1fd9fbe3a06b639cb8ef8fa78b1a Mon Sep 17 00:00:00 2001
From: Ilia Platone <info@iliaplatone.com>
Date: Sat, 22 Dec 2018 00:38:23 +0100
Subject: [PATCH] [tippecanoe] Added missing dependency for libdeflate as git
 submodule | This work was sponsored by SkySight (@plantain)

---
 mvt.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mvt.cpp b/mvt.cpp
index 91a5ca6..07d7a1c 100644
--- a/mvt.cpp
+++ b/mvt.cpp
@@ -47,6 +47,7 @@ int decompress(std::string const &input, std::string &output) {
 		output.resize(existing_output + 2 * avail_in + 100);
 		next_out = (void *) (output.data() + existing_output);
 		avail_out = (output.size() - existing_output);
+		avail_in = (input.size() - avail_in);
 
 		if (ret != LIBDEFLATE_SUCCESS) {
 			fprintf(stderr, "Decompression error: ");
@@ -85,13 +86,14 @@ int compress(std::string const &input, std::string &output) {
 		output.resize(avail_in + increase);
 		avail_out = increase;
 		next_out = (void *) (output.data() + avail_in);
+		next_in = (void *) (input.data() + avail_in);
 		int ret = libdeflate_deflate_compress(deflate_s,
 						      next_in, avail_in,
 						      next_out, avail_out);
 		if (ret != LIBDEFLATE_SUCCESS) {
 			return -1;
 		}
-		avail_in += (increase - avail_out);
+		avail_in -= (increase - avail_out);
 	} while (avail_out == 0);
 	libdeflate_free_compressor(deflate_s);
 	output.resize(avail_in);