| /* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. |
| * Copyright (C) 2009 VMware, Inc. 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, sublicense, |
| * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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 compiler.h |
| * Compiler-related stuff. |
| */ |
| |
| |
| #ifndef COMPILER_H |
| #define COMPILER_H |
| |
| |
| #include <assert.h> |
| |
| #include "util/macros.h" |
| |
| #include "c99_compat.h" /* inline, __func__, etc. */ |
| |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| |
| /** |
| * Either define MESA_BIG_ENDIAN or MESA_LITTLE_ENDIAN, and CPU_TO_LE32. |
| * Do not use these unless absolutely necessary! |
| * Try to use a runtime test instead. |
| * For now, only used by some DRI hardware drivers for color/texel packing. |
| */ |
| #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN |
| #if defined(__linux__) |
| #include <byteswap.h> |
| #define CPU_TO_LE32( x ) bswap_32( x ) |
| #elif defined(__APPLE__) |
| #include <CoreFoundation/CFByteOrder.h> |
| #define CPU_TO_LE32( x ) CFSwapInt32HostToLittle( x ) |
| #elif defined(__OpenBSD__) |
| #include <sys/types.h> |
| #define CPU_TO_LE32( x ) htole32( x ) |
| #else /*__linux__ */ |
| #include <sys/endian.h> |
| #define CPU_TO_LE32( x ) bswap32( x ) |
| #endif /*__linux__*/ |
| #define MESA_BIG_ENDIAN 1 |
| #else |
| #define CPU_TO_LE32( x ) ( x ) |
| #define MESA_LITTLE_ENDIAN 1 |
| #endif |
| #define LE32_TO_CPU( x ) CPU_TO_LE32( x ) |
| |
| |
| |
| #define IEEE_ONE 0x3f800000 |
| |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| |
| #endif /* COMPILER_H */ |
