New LZW decoder: Routine to extract LZW codes from GIF sub-block sequences.

1 files changed, 28 insertions, 0 deletions

diff --git a/src/lzw.h b/src/lzw.h
new file mode 100644
index 0000000..0683ad0
--- /dev/null
+++ b/src/lzw.h
@@ -0,0 +1,28 @@
+/*
+ * This file is part of NetSurf's LibNSGIF, http://www.netsurf-browser.org/
+ * Licensed under the MIT License,
+ *                http://www.opensource.org/licenses/mit-license.php
+ *
+ * Copyright 2017 Michael Drake <michael.drake@codethink.co.uk>
+ */
+
+#ifndef LZW_H_
+#define LZW_H_
+
+/**
+ * \file
+ * \brief LZW decompression (interface)
+ *
+ * Decoder for GIF LZW data.
+ */
+
+
+/** LZW decoding response codes */
+typedef enum lzw_result {
+	LZW_OK,        /**< Success */
+	LZW_OK_EOD,    /**< Success; reached zero-length sub-block */
+	LZW_NO_DATA,   /**< Error: Out of data */
+} lzw_result;
+
+
+#endif