diff options
Diffstat (limited to 'src/input/vcd/libcdio/cdio/bytesex.h')
| -rw-r--r-- | src/input/vcd/libcdio/cdio/bytesex.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/input/vcd/libcdio/cdio/bytesex.h b/src/input/vcd/libcdio/cdio/bytesex.h new file mode 100644 index 000000000..c40e44729 --- /dev/null +++ b/src/input/vcd/libcdio/cdio/bytesex.h @@ -0,0 +1,196 @@ +/* + $Id: bytesex.h,v 1.1 2005/01/02 00:51:38 rockyb Exp $ + + Copyright (C) 2000, 2004 Herbert Valerio Riedel <hvr@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 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 +*/ + +#ifndef __CDIO_BYTESEX_H__ +#define __CDIO_BYTESEX_H__ + +#include <cdio/types.h> +#include <cdio/bytesex_asm.h> +#include <cdio/logging.h> + +/* generic byteswap routines */ + +#define UINT16_SWAP_LE_BE_C(val) ((uint16_t) ( \ + (((uint16_t) (val) & (uint16_t) 0x00ffU) << 8) | \ + (((uint16_t) (val) & (uint16_t) 0xff00U) >> 8))) + +#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))) + +#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 stuff */ + +#define to_711(i) uint8_to_le(i) +#define from_711(i) uint8_from_le(i) + +#define to_721(i) uint16_to_le(i) +#define from_721(i) uint16_from_le(i) + +#define to_721(i) uint16_to_le(i) +#define from_721(i) uint16_from_le(i) + +#define to_722(i) uint16_to_be(i) +#define from_722(i) uint16_from_be(i) + +static inline uint32_t +to_723(uint16_t i) +{ + return uint32_swap_le_be(i) | i; +} + +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); +} + +#define to_731(i) uint32_to_le(i) +#define from_731(i) uint32_from_le(i) + +#define to_732(i) uint32_to_be(i) +#define from_732(i) uint32_from_be(i) + +static inline uint64_t +to_733(uint32_t i) +{ + return uint64_swap_le_be(i) | i; +} + +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: + */ |