Initial commit (version 0.2.1)

1 files changed, 91 insertions, 0 deletions

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+/* cocos2d for iPhone
+ *
+ * http://www.cocos2d-iphone.org
+ *
+ *
+ * inflateMemory_ based on zlib example code
+ *              http://www.zlib.net
+ *
+ * Some ideas were taken from:
+ *              http://themanaworld.org/
+ *              from the mapreader.cpp file 
+ *
+ */
+
+#ifndef __CC_ZIP_UTILS_H
+#define __CC_ZIP_UTILS_H
+
+#import <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif  
+        
+        /* XXX: pragma pack ??? */
+        /** @struct CCZHeader
+         */
+        struct CCZHeader {
+                uint8_t                 sig[4];                         // signature. Should be 'CCZ!' 4 bytes
+                uint16_t                compression_type;       // should 0
+                uint16_t                version;                        // should be 2 (although version type==1 is also supported)
+                uint32_t                reserved;                       // Reserverd for users.
+                uint32_t                len;                            // size of the uncompressed file
+        };
+        
+        enum {
+                CCZ_COMPRESSION_ZLIB,                           // zlib format.
+                CCZ_COMPRESSION_BZIP2,                          // bzip2 format (not supported yet)
+                CCZ_COMPRESSION_GZIP,                           // gzip format (not supported yet)
+                CCZ_COMPRESSION_NONE,                           // plain (not supported yet)
+        };
+        
+/** @file
+ * Zip helper functions
+ */
+
+/** 
+ * Inflates either zlib or gzip deflated memory. The inflated memory is
+ * expected to be freed by the caller.
+ *
+ * It will allocate 256k for the destination buffer. If it is not enought it will multiply the previous buffer size per 2, until there is enough memory.
+ * @returns the length of the deflated buffer
+ *
+ @since v0.8.1
+ */
+int ccInflateMemory(unsigned char *in, unsigned int inLength, unsigned char **out);
+
+/** 
+ * Inflates either zlib or gzip deflated memory. The inflated memory is
+ * expected to be freed by the caller.
+ *
+ * outLenghtHint is assumed to be the needed room to allocate the inflated buffer.
+ *
+ * @returns the length of the deflated buffer
+ *
+ @since v1.0.0
+ */
+int ccInflateMemoryWithHint(unsigned char *in, unsigned int inLength, unsigned char **out, unsigned int outLenghtHint );
+
+        
+/** inflates a GZip file into memory
+ *
+ * @returns the length of the deflated buffer
+ *
+ * @since v0.99.5
+ */
+int ccInflateGZipFile(const char *filename, unsigned char **out);
+
+/** inflates a CCZ file into memory
+ *
+ * @returns the length of the deflated buffer
+ *
+ * @since v0.99.5
+ */
+int ccInflateCCZFile(const char *filename, unsigned char **out);
+        
+
+#ifdef __cplusplus
+}
+#endif  
+                
+#endif // __CC_ZIP_UTILS_H