1 files changed, 56 insertions, 0 deletions
diff --git a/include/qhy/unlockimagequeue.h b/include/qhy/unlockimagequeue.h
new file mode 100644
index 0000000..35aef29
--- /dev/null
+++ b/include/qhy/unlockimagequeue.h
@@ -0,0 +1,56 @@
+/*
+ QHYCCD SDK
+ 
+ Copyright (c) 2014 QHYCCD.
+ All Rights Reserved.
+ 
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option)
+ any later version.
+ 
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ more details.
+ 
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc., 59
+ Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ 
+ The full GNU General Public License is included in this distribution in the
+ file called LICENSE.
+ */
+#ifndef _UNLOCK_QUEUE_H
+#define _UNLOCK_QUEUE_H
+
+class UnlockImageQueue {
+public:
+    UnlockImageQueue();
+    virtual ~UnlockImageQueue();
+    
+    bool Initialize(int nSize);
+    unsigned int Put(const unsigned char *pBuffer, unsigned int nLen);
+    unsigned int Get(unsigned char *pBuffer, unsigned int nLen);
+    inline void Clean() {
+        m_nIn = 0;
+        m_nOut = 0;
+    }
+    inline unsigned int GetDataLen() const { 
+    	return  m_nIn - m_nOut; 
+    }
+    
+private:
+    inline bool is_power_of_2(unsigned long n) { 
+    	return (n != 0 && ((n & (n - 1)) == 0)); 
+    };
+    
+    inline unsigned long roundup_power_of_two(unsigned long val);
+private:
+    unsigned char *m_pBuffer;	/* the buffer holding the data */
+    unsigned int   m_nSize;		/* the size of the allocated buffer */
+    unsigned int   m_nIn;		/* data is added at offset (in % size) */
+    unsigned int   m_nOut;     	/* data is extracted from offset (out % size) */
+};
+
+#endif