1 files changed, 102 insertions, 0 deletions
diff --git a/extmod/uzlib/tinf.h b/extmod/uzlib/tinf.h
new file mode 100644
index 0000000000..d82959df98
--- /dev/null
+++ b/extmod/uzlib/tinf.h
@@ -0,0 +1,102 @@
+/*
+ * uzlib  -  tiny deflate/inflate library (deflate, gzip, zlib)
+ *
+ * Copyright (c) 2003 by Joergen Ibsen / Jibz
+ * All Rights Reserved
+ * http://www.ibsensoftware.com/
+ *
+ * Copyright (c) 2014 by Paul Sokolovsky
+ */
+
+#ifndef TINF_H_INCLUDED
+#define TINF_H_INCLUDED
+
+#include <stdint.h>
+
+/* calling convention */
+#ifndef TINFCC
+ #ifdef __WATCOMC__
+  #define TINFCC __cdecl
+ #else
+  #define TINFCC
+ #endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define TINF_OK             0
+#define TINF_DATA_ERROR    (-3)
+#define TINF_DEST_OVERFLOW (-4)
+
+/* data structures */
+
+typedef struct {
+   unsigned short table[16];  /* table of code length counts */
+   unsigned short trans[288]; /* code -> symbol translation table */
+} TINF_TREE;
+
+struct TINF_DATA;
+typedef struct TINF_DATA {
+   const unsigned char *source;
+   unsigned int tag;
+   unsigned int bitcount;
+
+    /* Buffer start */
+    unsigned char *destStart;
+    /* Buffer total size */
+    unsigned int destSize;
+    /* Current pointer in buffer */
+    unsigned char *dest;
+    /* Remaining bytes in buffer */
+    unsigned int destRemaining;
+    /* Argument is the allocation size which didn't fit into buffer. Note that
+       exact mimumum size to grow buffer by is lastAlloc - destRemaining. But
+       growing by this exact size is ineficient, as the next allocation will
+       fail again. */
+    int (*destGrow)(struct TINF_DATA *data, unsigned int lastAlloc);
+
+   TINF_TREE ltree; /* dynamic length/symbol tree */
+   TINF_TREE dtree; /* dynamic distance tree */
+} TINF_DATA;
+
+
+/* low-level API */
+
+/* Step 1: Allocate TINF_DATA structure */
+/* Step 2: Set destStart, destSize, and destGrow fields */
+/* Step 3: Set source field */
+/* Step 4: Call tinf_uncompress_dyn() */
+/* Step 5: In response to destGrow callback, update destStart and destSize fields */
+/* Step 6: When tinf_uncompress_dyn() returns, buf.dest points to a byte past last uncompressed byte */
+
+int TINFCC tinf_uncompress_dyn(TINF_DATA *d);
+int TINFCC tinf_zlib_uncompress_dyn(TINF_DATA *d, unsigned int sourceLen);
+
+/* high-level API */
+
+void TINFCC tinf_init();
+
+int TINFCC tinf_uncompress(void *dest, unsigned int *destLen,
+                           const void *source, unsigned int sourceLen);
+
+int TINFCC tinf_gzip_uncompress(void *dest, unsigned int *destLen,
+                                const void *source, unsigned int sourceLen);
+
+int TINFCC tinf_zlib_uncompress(void *dest, unsigned int *destLen,
+                                const void *source, unsigned int sourceLen);
+
+unsigned int TINFCC tinf_adler32(const void *data, unsigned int length);
+
+unsigned int TINFCC tinf_crc32(const void *data, unsigned int length);
+
+/* compression API */
+
+void TINFCC tinf_compress(void *data, const uint8_t *src, unsigned slen);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* TINF_H_INCLUDED */