First commit - moving from LuaForge to SourceForge

1 files changed, 44 insertions, 0 deletions

diff --git a/src/im_compress.cpp b/src/im_compress.cpp
new file mode 100644
index 0000000..8a9a863
--- /dev/null
+++ b/src/im_compress.cpp
@@ -0,0 +1,44 @@
+/** \file
+ * \brief Data Compression Utilities
+ *
+ * See Copyright Notice in im_lib.h
+ * $Id: im_compress.cpp,v 1.1 2008/10/17 06:10:16 scuri Exp $
+ */
+
+
+#include <math.h>
+
+#include "im_util.h"
+#include "zlib.h"
+
+extern "C" {
+#include "lzf.h"
+}
+
+int imCompressDataZ(const void* src_data, int src_size, void* dst_data, int dst_size, int zip_quality)
+{
+  uLongf ret_size = (uLongf)dst_size;
+	if (compress2((Bytef*)dst_data, &ret_size, (const Bytef*)src_data, src_size, zip_quality) != Z_OK)
+    return 0;
+
+  return (int)ret_size;
+}
+
+int imCompressDataUnZ(const void* src_data, int src_size, void* dst_data, int dst_size)
+{
+  uLongf ret_size = (uLongf)dst_size;
+	if (uncompress((Bytef*)dst_data, &ret_size, (const Bytef*)src_data, src_size) != Z_OK)
+    return 0;
+
+  return (int)ret_size;
+}
+
+int imCompressDataLZF(const void* src_data, int src_size, void* dst_data, int dst_size)
+{
+  return lzf_compress(src_data, src_size, dst_data, dst_size);
+}
+
+int imCompressDataUnLZF(const void* src_data, int src_size, void* dst_data, int dst_size)
+{
+  return lzf_decompress(src_data, src_size, dst_data, dst_size);
+}