1 files changed, 130 insertions, 0 deletions
diff --git a/openjpeg/src/lib/openjpip/byte_manager.h b/openjpeg/src/lib/openjpip/byte_manager.h
new file mode 100644
index 000000000..16091ece7
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+++ b/openjpeg/src/lib/openjpip/byte_manager.h
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+/*
+ * $Id$
+ *
+ * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2014, Professor Benoit Macq
+ * Copyright (c) 2010-2011, Kaori Hagihara
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef   	BYTE_MANAGER_H_
+#define   	BYTE_MANAGER_H_
+
+#include <stddef.h>
+#include "openjpeg.h"
+#include "opj_stdint.h"
+typedef uint8_t Byte_t;
+typedef uint16_t Byte2_t;
+typedef uint32_t Byte4_t;
+typedef uint64_t Byte8_t;
+
+/**
+ * fetch bytes of data in file stream
+ *
+ * @param[in] fd     file discriptor
+ * @param[in] offset start Byte position
+ * @param[in] size   Byte length
+ * @return           pointer to the fetched data
+ */
+Byte_t * fetch_bytes( int fd, OPJ_OFF_T offset, OPJ_SIZE_T size);
+
+
+/**
+ * fetch a 1-byte Byte codes in file stream
+ *
+ * @param[in] fd     file discriptor
+ * @param[in] offset start Byte position
+ * @return           fetched codes
+ */
+Byte_t fetch_1byte( int fd, OPJ_OFF_T offset);
+
+/**
+ * fetch a 2-byte big endian Byte codes in file stream
+ *
+ * @param[in] fd     file discriptor
+ * @param[in] offset start Byte position
+ * @return           fetched codes
+ */
+Byte2_t fetch_2bytebigendian( int fd, OPJ_OFF_T offset);
+
+/**
+ * fetch a 4-byte big endian Byte codes in file stream
+ *
+ * @param[in] fd     file discriptor
+ * @param[in] offset start Byte position
+ * @return           fetched codes
+ */
+Byte4_t fetch_4bytebigendian( int fd, OPJ_OFF_T offset);
+
+/**
+ * fetch a 8-byte big endian Byte codes in file stream
+ *
+ * @param[in] fd     file discriptor
+ * @param[in] offset start Byte position
+ * @return           fetched codes
+ */
+Byte8_t fetch_8bytebigendian( int fd, OPJ_OFF_T offset);
+
+
+/**
+ * convert 2-byte big endian Byte codes to number
+ *
+ * @param[in] buf Byte codes
+ * @return        resolved number
+ */
+Byte2_t big2( Byte_t *buf);
+
+/**
+ * convert 4-byte big endian Byte codes to number
+ *
+ * @param[in] buf Byte codes
+ * @return        resolved number
+ */
+Byte4_t big4( Byte_t *buf);
+
+/**
+ * convert 8-byte big endian Byte codes to number
+ *
+ * @param[in] buf Byte codes
+ * @return        resolved number
+ */
+Byte8_t big8( Byte_t *buf);
+
+/**
+ * modify 4Byte code in a codestream
+ *  
+ * @param[in]  code code value
+ * @param[out] stream modifying codestream
+ */
+void modify_4Bytecode( Byte4_t code, Byte_t *stream);
+
+/**
+ * Get file size
+ *
+ * @param[in] fd file discriptor
+ * @return       file size
+ */
+OPJ_OFF_T get_filesize( int fd);
+
+#endif 	    /* !BYTE_MANAGER_H_ */