1 files changed, 53 insertions, 0 deletions
diff --git a/Imaging/libImaging/Zip.h b/Imaging/libImaging/Zip.h
new file mode 100644
index 0000000..d306d7c
--- /dev/null
+++ b/Imaging/libImaging/Zip.h
@@ -0,0 +1,53 @@
+/*
+ * The Python Imaging Library.
+ * $Id: Zip.h 2134 2004-10-06 08:55:20Z fredrik $
+ *
+ * declarations for the ZIP codecs
+ *
+ * Copyright (c) Fredrik Lundh 1996.
+ */
+
+
+#include "zlib.h"
+
+
+/* modes */
+#define	ZIP_PNG	0		/* continuous, filtered image data */
+#define	ZIP_PNG_PALETTE	1	/* non-continuous data, disable filtering */
+#define	ZIP_TIFF_PREDICTOR 2	/* TIFF, with predictor */
+#define	ZIP_TIFF 3		/* TIFF, without predictor */
+
+
+typedef struct {
+
+    /* CONFIGURATION */
+
+    /* Codec mode */
+    int mode;
+
+    /* Optimize (max compression) SLOW!!! */
+    int optimize;
+
+    /* Predefined dictionary (experimental) */
+    char* dictionary;
+    int dictionary_size;
+
+    /* PRIVATE CONTEXT (set by decoder/encoder) */
+
+    z_stream z_stream;		/* (de)compression stream */
+
+    UINT8* previous;		/* previous line (allocated) */
+
+    int last_output;		/* # bytes last output by inflate */
+
+    /* Compressor specific stuff */
+    UINT8* prior;		/* filter storage (allocated) */
+    UINT8* up;
+    UINT8* average;
+    UINT8* paeth;
+
+    UINT8* output;		/* output data */
+
+    int prefix;			/* size of filter prefix (0 for TIFF data) */
+
+} ZIPSTATE;