X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Fserialization.cpp;h=c0fbe10e23335fb9cc8f2031dd8637e0cec548a3;hb=0ba1cf82033a810dd2e6178e23794bb135ede46a;hp=64fd4f8ba5541481ede66085192673f336c3599d;hpb=037b2591971d752e67fa7d47095b996b3f56da5a;p=minetest.git

diff --git a/src/serialization.cpp b/src/serialization.cpp
index 64fd4f8ba..c0fbe10e2 100644
--- a/src/serialization.cpp
+++ b/src/serialization.cpp
@@ -1,6 +1,6 @@
 /*
-Minetest-c55
-Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
@@ -18,7 +18,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 */
 
 #include "serialization.h"
-#include "utility.h"
+
+#include "util/serialize.h"
 #ifdef _WIN32
 	#define ZLIB_WINAPI
 #endif
@@ -52,13 +53,11 @@ void zerr(int ret)
     }
 }
 
-void compressZlib(SharedBuffer<u8> data, std::ostream &os)
+void compressZlib(SharedBuffer<u8> data, std::ostream &os, int level)
 {
 	z_stream z;
 	const s32 bufsize = 16384;
-	//char input_buffer[bufsize];
 	char output_buffer[bufsize];
-	int input_i = 0;
 	int status = 0;
 	int ret;
 
@@ -66,30 +65,20 @@ void compressZlib(SharedBuffer<u8> data, std::ostream &os)
 	z.zfree = Z_NULL;
 	z.opaque = Z_NULL;
 
-	ret = deflateInit(&z, -1);
+	ret = deflateInit(&z, level);
 	if(ret != Z_OK)
 		throw SerializationError("compressZlib: deflateInit failed");
 	
-	z.avail_in = 0;
-	
+	// Point zlib to our input buffer
+	z.next_in = (Bytef*)&data[0];
+	z.avail_in = data.getSize();
+	// And get all output
 	for(;;)
 	{
-		int flush = Z_NO_FLUSH;
 		z.next_out = (Bytef*)output_buffer;
 		z.avail_out = bufsize;
-
-		if(z.avail_in == 0)
-		{
-			//z.next_in = (char*)&data[input_i];
-			z.next_in = (Bytef*)&data[input_i];
-			z.avail_in = data.getSize() - input_i;
-			input_i += z.avail_in;
-			if(input_i == (int)data.getSize())
-				flush = Z_FINISH;
-		}
-		if(z.avail_in == 0)
-			break;
-		status = deflate(&z, flush);
+		
+		status = deflate(&z, Z_FINISH);
 		if(status == Z_NEED_DICT || status == Z_DATA_ERROR
 				|| status == Z_MEM_ERROR)
 		{
@@ -99,16 +88,18 @@ void compressZlib(SharedBuffer<u8> data, std::ostream &os)
 		int count = bufsize - z.avail_out;
 		if(count)
 			os.write(output_buffer, count);
+		// This determines zlib has given all output
+		if(status == Z_STREAM_END)
+			break;
 	}
 
 	deflateEnd(&z);
-
 }
 
-void compressZlib(const std::string &data, std::ostream &os)
+void compressZlib(const std::string &data, std::ostream &os, int level)
 {
 	SharedBuffer<u8> databuf((u8*)data.c_str(), data.size());
-	compressZlib(databuf, os);
+	compressZlib(databuf, os, level);
 }
 
 void decompressZlib(std::istream &is, std::ostream &os)