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-rw-r--r--libraries/logic/GZip.cpp115
1 files changed, 0 insertions, 115 deletions
diff --git a/libraries/logic/GZip.cpp b/libraries/logic/GZip.cpp
deleted file mode 100644
index 38605df6..00000000
--- a/libraries/logic/GZip.cpp
+++ /dev/null
@@ -1,115 +0,0 @@
-#include "GZip.h"
-#include <zlib.h>
-#include <QByteArray>
-
-bool GZip::unzip(const QByteArray &compressedBytes, QByteArray &uncompressedBytes)
-{
- if (compressedBytes.size() == 0)
- {
- uncompressedBytes = compressedBytes;
- return true;
- }
-
- unsigned uncompLength = compressedBytes.size();
- uncompressedBytes.clear();
- uncompressedBytes.resize(uncompLength);
-
- z_stream strm;
- memset(&strm, 0, sizeof(strm));
- strm.next_in = (Bytef *)compressedBytes.data();
- strm.avail_in = compressedBytes.size();
-
- bool done = false;
-
- if (inflateInit2(&strm, (16 + MAX_WBITS)) != Z_OK)
- {
- return false;
- }
-
- int err = Z_OK;
-
- while (!done)
- {
- // If our output buffer is too small
- if (strm.total_out >= uncompLength)
- {
- uncompressedBytes.resize(uncompLength * 2);
- uncompLength *= 2;
- }
-
- strm.next_out = (Bytef *)(uncompressedBytes.data() + strm.total_out);
- strm.avail_out = uncompLength - strm.total_out;
-
- // Inflate another chunk.
- err = inflate(&strm, Z_SYNC_FLUSH);
- if (err == Z_STREAM_END)
- done = true;
- else if (err != Z_OK)
- {
- break;
- }
- }
-
- if (inflateEnd(&strm) != Z_OK || !done)
- {
- return false;
- }
-
- uncompressedBytes.resize(strm.total_out);
- return true;
-}
-
-bool GZip::zip(const QByteArray &uncompressedBytes, QByteArray &compressedBytes)
-{
- if (uncompressedBytes.size() == 0)
- {
- compressedBytes = uncompressedBytes;
- return true;
- }
-
- unsigned compLength = std::min(uncompressedBytes.size(), 16);
- compressedBytes.clear();
- compressedBytes.resize(compLength);
-
- z_stream zs;
- memset(&zs, 0, sizeof(zs));
-
- if (deflateInit2(&zs, Z_DEFAULT_COMPRESSION, Z_DEFLATED, (16 + MAX_WBITS), 8, Z_DEFAULT_STRATEGY) != Z_OK)
- {
- return false;
- }
-
- zs.next_in = (Bytef*)uncompressedBytes.data();
- zs.avail_in = uncompressedBytes.size();
-
- int ret;
- compressedBytes.resize(uncompressedBytes.size());
-
- unsigned offset = 0;
- unsigned temp = 0;
- do
- {
- auto remaining = compressedBytes.size() - offset;
- if(remaining < 1)
- {
- compressedBytes.resize(compressedBytes.size() * 2);
- }
- zs.next_out = (Bytef *) (compressedBytes.data() + offset);
- temp = zs.avail_out = compressedBytes.size() - offset;
- ret = deflate(&zs, Z_FINISH);
- offset += temp - zs.avail_out;
- } while (ret == Z_OK);
-
- compressedBytes.resize(offset);
-
- if (deflateEnd(&zs) != Z_OK)
- {
- return false;
- }
-
- if (ret != Z_STREAM_END)
- {
- return false;
- }
- return true;
-} \ No newline at end of file