1 files changed, 220 insertions, 0 deletions
diff --git a/include/cdio/bytesex.h b/include/cdio/bytesex.h
new file mode 100644
index 00000000..e1be483e
--- /dev/null
+++ b/include/cdio/bytesex.h
@@ -0,0 +1,220 @@
+/*
+    $Id: bytesex.h,v 1.5 2008/03/25 15:59:08 karl Exp $
+
+    Copyright (C) 2000, 2004 Herbert Valerio Riedel <hvr@gnu.org>
+    Copyright (C) 2005, 2008 Rocky Bernstein <rocky@gnu.org>
+
+    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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+/** \file bytesex.h 
+ *  \brief  Generic Byte-swapping routines.
+ *
+ *   Note: this header will is slated to get removed and libcdio will
+ *   use glib.h routines instead.
+*/
+
+#ifndef __CDIO_BYTESEX_H__
+#define __CDIO_BYTESEX_H__
+
+#include <cdio/types.h>
+#include <cdio/bytesex_asm.h>
+#include <cdio/logging.h>
+
+/** 16-bit big-endian to little-endian */
+#define UINT16_SWAP_LE_BE_C(val) ((uint16_t) ( \
+    (((uint16_t) (val) & (uint16_t) 0x00ffU) << 8) | \
+    (((uint16_t) (val) & (uint16_t) 0xff00U) >> 8)))
+
+/** 32-bit big-endian to little-endian */
+#define UINT32_SWAP_LE_BE_C(val) ((uint32_t) ( \
+    (((uint32_t) (val) & (uint32_t) 0x000000ffU) << 24) | \
+    (((uint32_t) (val) & (uint32_t) 0x0000ff00U) <<  8) | \
+    (((uint32_t) (val) & (uint32_t) 0x00ff0000U) >>  8) | \
+    (((uint32_t) (val) & (uint32_t) 0xff000000U) >> 24)))
+
+/** 64-bit big-endian to little-endian */
+#define UINT64_SWAP_LE_BE_C(val) ((uint64_t) ( \
+    (((uint64_t) (val) & (uint64_t) UINT64_C(0x00000000000000ff)) << 56) | \
+    (((uint64_t) (val) & (uint64_t) UINT64_C(0x000000000000ff00)) << 40) | \
+    (((uint64_t) (val) & (uint64_t) UINT64_C(0x0000000000ff0000)) << 24) | \
+    (((uint64_t) (val) & (uint64_t) UINT64_C(0x00000000ff000000)) <<  8) | \
+    (((uint64_t) (val) & (uint64_t) UINT64_C(0x000000ff00000000)) >>  8) | \
+    (((uint64_t) (val) & (uint64_t) UINT64_C(0x0000ff0000000000)) >> 24) | \
+    (((uint64_t) (val) & (uint64_t) UINT64_C(0x00ff000000000000)) >> 40) | \
+    (((uint64_t) (val) & (uint64_t) UINT64_C(0xff00000000000000)) >> 56)))
+
+#ifndef UINT16_SWAP_LE_BE
+# define UINT16_SWAP_LE_BE UINT16_SWAP_LE_BE_C
+#endif
+
+#ifndef UINT32_SWAP_LE_BE
+# define UINT32_SWAP_LE_BE UINT32_SWAP_LE_BE_C
+#endif
+
+#ifndef UINT64_SWAP_LE_BE
+# define UINT64_SWAP_LE_BE UINT64_SWAP_LE_BE_C
+#endif
+
+inline static 
+uint16_t uint16_swap_le_be (const uint16_t val)
+{
+  return UINT16_SWAP_LE_BE (val);
+}
+
+inline static 
+uint32_t uint32_swap_le_be (const uint32_t val)
+{
+  return UINT32_SWAP_LE_BE (val);
+}
+
+inline static 
+uint64_t uint64_swap_le_be (const uint64_t val)
+{
+  return UINT64_SWAP_LE_BE (val);
+}
+
+# define UINT8_TO_BE(val)      ((uint8_t) (val))
+# define UINT8_TO_LE(val)      ((uint8_t) (val))
+#ifdef WORDS_BIGENDIAN
+# define UINT16_TO_BE(val)     ((uint16_t) (val))
+# define UINT16_TO_LE(val)     ((uint16_t) UINT16_SWAP_LE_BE(val))
+
+# define UINT32_TO_BE(val)     ((uint32_t) (val))
+# define UINT32_TO_LE(val)     ((uint32_t) UINT32_SWAP_LE_BE(val))
+
+# define UINT64_TO_BE(val)     ((uint64_t) (val))
+# define UINT64_TO_LE(val)     ((uint64_t) UINT64_SWAP_LE_BE(val))
+#else
+# define UINT16_TO_BE(val)     ((uint16_t) UINT16_SWAP_LE_BE(val))
+# define UINT16_TO_LE(val)     ((uint16_t) (val))
+
+# define UINT32_TO_BE(val)     ((uint32_t) UINT32_SWAP_LE_BE(val))
+# define UINT32_TO_LE(val)     ((uint32_t) (val))
+
+# define UINT64_TO_BE(val)     ((uint64_t) UINT64_SWAP_LE_BE(val))
+# define UINT64_TO_LE(val)     ((uint64_t) (val))
+#endif
+
+/** symmetric conversions */
+#define UINT8_FROM_BE(val)     (UINT8_TO_BE (val))
+#define UINT8_FROM_LE(val)     (UINT8_TO_LE (val))
+#define UINT16_FROM_BE(val)    (UINT16_TO_BE (val))
+#define UINT16_FROM_LE(val)    (UINT16_TO_LE (val))
+#define UINT32_FROM_BE(val)    (UINT32_TO_BE (val))
+#define UINT32_FROM_LE(val)    (UINT32_TO_LE (val))
+#define UINT64_FROM_BE(val)    (UINT64_TO_BE (val))
+#define UINT64_FROM_LE(val)    (UINT64_TO_LE (val))
+
+/** converter function template */
+#define CVT_TO_FUNC(bits) \
+ static inline uint ## bits ## _t \
+ uint ## bits ## _to_be (uint ## bits ## _t val) \
+ { return UINT ## bits ## _TO_BE (val); } \
+ static inline uint ## bits ## _t \
+ uint ## bits ## _to_le (uint ## bits ## _t val) \
+ { return UINT ## bits ## _TO_LE (val); } \
+
+CVT_TO_FUNC(8)
+CVT_TO_FUNC(16)
+CVT_TO_FUNC(32)
+CVT_TO_FUNC(64)
+
+#undef CVT_TO_FUNC
+
+#define uint8_from_be(val)     (uint8_to_be (val))
+#define uint8_from_le(val)     (uint8_to_le (val))
+#define uint16_from_be(val)    (uint16_to_be (val))
+#define uint16_from_le(val)    (uint16_to_le (val))
+#define uint32_from_be(val)    (uint32_to_be (val))
+#define uint32_from_le(val)    (uint32_to_le (val))
+#define uint64_from_be(val)    (uint64_to_be (val))
+#define uint64_from_le(val)    (uint64_to_le (val))
+
+/** ISO9660-related field conversion routines */
+
+/** Convert from uint8_t to ISO 9660 7.1.1 format */
+#define to_711(i)   uint8_to_le(i)
+
+/** Convert from ISO 9660 7.1.1 format to uint8_t */
+#define from_711(i) uint8_from_le(i)
+
+/** Convert from uint16_t to ISO 9669 7.2.1 format */
+#define to_721(i)   uint16_to_le(i)
+
+/** Convert from ISO 9660 7.2.1 format to uint16_t */
+#define from_721(i) uint16_from_le(i)
+
+/** Convert from uint16_t to ISO 9669 7.2.2 format */
+#define to_722(i)   uint16_to_be(i)
+
+/** Convert from ISO 9660 7.2.2 format to uint16_t */
+#define from_722(i) uint16_from_be(i)
+
+/** Convert from uint16_t to ISO 9669 7.2.3 format */
+static inline uint32_t
+to_723(uint16_t i)
+{
+  return uint32_swap_le_be(i) | i;
+}
+
+/** Convert from ISO 9660 7.2.3 format to uint16_t */
+static inline uint16_t 
+from_723 (uint32_t p)
+{
+  if (uint32_swap_le_be (p) != p)
+    cdio_warn ("from_723: broken byte order");
+
+  return (0xFFFF & p);
+}
+
+/** Convert from uint16_t to ISO 9669 7.3.1 format */
+#define to_731(i)   uint32_to_le(i)
+
+/** Convert from ISO 9660 7.3.1 format to uint32_t */
+#define from_731(i) uint32_from_le(i)
+
+/** Convert from uint32_t to ISO 9669 7.3.2 format */
+#define to_732(i)   uint32_to_be(i)
+
+/** Convert from ISO 9660 7.3.2 format to uint32_t */
+#define from_732(i) uint32_from_be(i)
+
+/** Convert from uint16_t to ISO 9669 7.3.3 format */
+static inline uint64_t
+to_733(uint32_t i)
+{
+  return uint64_swap_le_be(i) | i;
+}
+
+/** Convert from ISO 9660 7.3.3 format to uint32_t */
+static inline uint32_t 
+from_733 (uint64_t p)
+{
+  if (uint64_swap_le_be (p) != p)
+    cdio_warn ("from_733: broken byte order");
+    
+  return (UINT32_C(0xFFFFFFFF) & p);
+}
+
+#endif /* __CDIO_BYTESEX_H__ */
+
+
+/* 
+ * Local variables:
+ *  c-file-style: "gnu"
+ *  tab-width: 8
+ *  indent-tabs-mode: nil
+ * End:
+ */