summaryrefslogtreecommitdiffstats
path: root/src/liblzma/delta/delta_private.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/liblzma/delta/delta_private.h')
-rw-r--r--src/liblzma/delta/delta_private.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/liblzma/delta/delta_private.h b/src/liblzma/delta/delta_private.h
new file mode 100644
index 0000000..0d6cb38
--- /dev/null
+++ b/src/liblzma/delta/delta_private.h
@@ -0,0 +1,37 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file delta_private.h
+/// \brief Private common stuff for Delta encoder and decoder
+//
+// Author: Lasse Collin
+//
+// This file has been put into the public domain.
+// You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef LZMA_DELTA_PRIVATE_H
+#define LZMA_DELTA_PRIVATE_H
+
+#include "delta_common.h"
+
+typedef struct {
+ /// Next coder in the chain
+ lzma_next_coder next;
+
+ /// Delta distance
+ size_t distance;
+
+ /// Position in history[]
+ uint8_t pos;
+
+ /// Buffer to hold history of the original data
+ uint8_t history[LZMA_DELTA_DIST_MAX];
+} lzma_delta_coder;
+
+
+extern lzma_ret lzma_delta_coder_init(
+ lzma_next_coder *next, const lzma_allocator *allocator,
+ const lzma_filter_info *filters);
+
+#endif