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IABSD.fr/xenocara/xserver/glx/glxbyteorder.h
matthieu
- xserver/glx/glxbyteorder.h
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/* * (C) Copyright IBM Corporation 2006, 2007 * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sub license, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, THE AUTHORS, AND/OR THEIR SUPPLIERS BE LIABLE FOR * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /** * \file glxbyteorder.h * Platform glue for handling byte-ordering issues in GLX protocol. * * \author Ian Romanick <idr@us.ibm.com> */ #if !defined(__GLXBYTEORDER_H__) #define __GLXBYTEORDER_H__ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif #if HAVE_BYTESWAP_H #include <byteswap.h> #elif defined(USE_SYS_ENDIAN_H) #include <sys/endian.h> #elif defined(__APPLE__) #include <libkern/OSByteOrder.h> #define bswap_16 OSSwapInt16 #define bswap_32 OSSwapInt32 #define bswap_64 OSSwapInt64 #else #define bswap_16(value) \ ((((value) & 0xff) << 8) | ((value) >> 8)) #define bswap_32(value) \ (((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \ (uint32_t)bswap_16((uint16_t)((value) >> 16))) #define bswap_64(value) \ (((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) \ << 32) | \ (uint64_t)bswap_32((uint32_t)((value) >> 32))) #endif #endif /* !defined(__GLXBYTEORDER_H__) */