--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/python/pypngtile.pxd	Sun Sep 14 16:26:38 2014 +0300
@@ -0,0 +1,50 @@
+from libc.stdio cimport (
+        FILE,
+)
+
+cdef extern from "pngtile.h" :
+    struct pt_ctx :
+        pass
+
+    struct pt_image :
+        pass
+
+    enum pt_open_mode :
+        PT_OPEN_READ    # 0
+        PT_OPEN_UPDATE
+
+    enum pt_cache_status :
+        PT_CACHE_ERROR  # -1
+        PT_CACHE_FRESH
+        PT_CACHE_NONE
+        PT_CACHE_STALE
+        PT_CACHE_INCOMPAT
+
+    struct pt_image_info :
+        size_t img_width, img_height, img_bpp
+        int image_mtime, cache_mtime, cache_version
+        size_t image_bytes, cache_bytes
+        size_t cache_blocks
+
+    struct pt_image_params :
+        int background_color[4]
+    
+    struct pt_tile_info :
+        size_t width, height
+        size_t x, y
+        int zoom
+
+    ctypedef pt_image_info* const_image_info_ptr "const struct pt_image_info *"
+    
+    ## functions
+    int pt_image_open (pt_image **image_ptr, pt_ctx *ctx, char *png_path, int cache_mode) nogil
+    int pt_image_info_ "pt_image_info" (pt_image *image, pt_image_info **info_ptr) nogil
+    int pt_image_status (pt_image *image) nogil
+    int pt_image_load (pt_image *image) nogil
+    int pt_image_update (pt_image *image, pt_image_params *params) nogil
+    int pt_image_tile_file (pt_image *image, pt_tile_info *info, FILE *out) nogil
+    int pt_image_tile_mem (pt_image *image, pt_tile_info *info, char **buf_ptr, size_t *len_ptr) nogil
+    void pt_image_destroy (pt_image *image) nogil
+    
+    # error code -> name
+    char* pt_strerror (int err)