| 1 | /* |
| 2 | * (C) Copyright IBM Corporation 2006, 2007 |
| 3 | * All Rights Reserved. |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the "Software"), |
| 7 | * to deal in the Software without restriction, including without limitation |
| 8 | * the rights to use, copy, modify, merge, publish, distribute, sub license, |
| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
| 10 | * Software is furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice (including the next |
| 13 | * paragraph) shall be included in all copies or substantial portions of the |
| 14 | * Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE COPYRIGHT HOLDERS, THE AUTHORS, AND/OR THEIR SUPPLIERS BE LIABLE FOR |
| 20 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 21 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE |
| 22 | * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | /** |
| 26 | * \file glxbyteorder.h |
| 27 | * Platform glue for handling byte-ordering issues in GLX protocol. |
| 28 | * |
| 29 | * \author Ian Romanick <idr@us.ibm.com> |
| 30 | */ |
| 31 | #if !defined(__GLXBYTEORDER_H__) |
| 32 | #define __GLXBYTEORDER_H__ |
| 33 | |
| 34 | #ifdef HAVE_DIX_CONFIG_H |
| 35 | #include <dix-config.h> |
| 36 | #endif |
| 37 | |
| 38 | #if HAVE_BYTESWAP_H |
| 39 | #include <byteswap.h> |
| 40 | #elif defined(USE_SYS_ENDIAN_H) |
| 41 | #include <sys/endian.h> |
| 42 | #elif defined(__APPLE__) |
| 43 | #include <libkern/OSByteOrder.h> |
| 44 | #define bswap_16 OSSwapInt16 |
| 45 | #define bswap_32 OSSwapInt32 |
| 46 | #define bswap_64 OSSwapInt64 |
| 47 | #else |
| 48 | #define bswap_16(value) \ |
| 49 | ((((value) & 0xff) << 8) | ((value) >> 8)) |
| 50 | |
| 51 | #define bswap_32(value) \ |
| 52 | (((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \ |
| 53 | (uint32_t)bswap_16((uint16_t)((value) >> 16))) |
| 54 | |
| 55 | #define bswap_64(value) \ |
| 56 | (((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) \ |
| 57 | << 32) | \ |
| 58 | (uint64_t)bswap_32((uint32_t)((value) >> 32))) |
| 59 | #endif |
| 60 | |
| 61 | #endif /* !defined(__GLXBYTEORDER_H__) */ |