diff options
Diffstat (limited to 'macosx/plugins/DFInput/SDL/include/SDL_endian.h')
| -rw-r--r-- | macosx/plugins/DFInput/SDL/include/SDL_endian.h | 258 |
1 files changed, 0 insertions, 258 deletions
diff --git a/macosx/plugins/DFInput/SDL/include/SDL_endian.h b/macosx/plugins/DFInput/SDL/include/SDL_endian.h deleted file mode 100644 index de69e32..0000000 --- a/macosx/plugins/DFInput/SDL/include/SDL_endian.h +++ /dev/null @@ -1,258 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2010 Sam Lantinga - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - - Sam Lantinga - slouken@libsdl.org -*/ - -/** - * \file SDL_endian.h - * - * Functions for reading and writing endian-specific values - */ - -#ifndef _SDL_endian_h -#define _SDL_endian_h - -#include "SDL_stdinc.h" - -/** - * \name The two types of endianness - */ -/*@{*/ -#define SDL_LIL_ENDIAN 1234 -#define SDL_BIG_ENDIAN 4321 -/*@}*/ - -#ifndef SDL_BYTEORDER /* Not defined in SDL_config.h? */ -#ifdef __linux__ -#include <endian.h> -#define SDL_BYTEORDER __BYTE_ORDER -#else /* __linux __ */ -#if defined(__hppa__) || \ - defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \ - (defined(__MIPS__) && defined(__MISPEB__)) || \ - defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \ - defined(__sparc__) -#define SDL_BYTEORDER SDL_BIG_ENDIAN -#else -#define SDL_BYTEORDER SDL_LIL_ENDIAN -#endif -#endif /* __linux __ */ -#endif /* !SDL_BYTEORDER */ - - -#include "begin_code.h" -/* Set up for C function definitions, even when using C++ */ -#ifdef __cplusplus -/* *INDENT-OFF* */ -extern "C" { -/* *INDENT-ON* */ -#endif - -/** - * \file SDL_endian.h - * - * Uses inline functions for compilers that support them, and static - * functions for those that do not. Because these functions become - * static for compilers that do not support inline functions, this - * header should only be included in files that actually use them. - */ -#if defined(__GNUC__) && defined(__i386__) && \ - !(__GNUC__ == 2 && __GNUC_MINOR__ == 95 /* broken gcc version */) -static __inline__ Uint16 -SDL_Swap16(Uint16 x) -{ - __asm__("xchgb %b0,%h0": "=q"(x):"0"(x)); - return x; -} -#elif defined(__GNUC__) && defined(__x86_64__) -static __inline__ Uint16 -SDL_Swap16(Uint16 x) -{ - __asm__("xchgb %b0,%h0": "=Q"(x):"0"(x)); - return x; -} -#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__)) -static __inline__ Uint16 -SDL_Swap16(Uint16 x) -{ - Uint16 result; - - __asm__("rlwimi %0,%2,8,16,23": "=&r"(result):"0"(x >> 8), "r"(x)); - return result; -} -#elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__)) && !defined(__mcoldfire__) -static __inline__ Uint16 -SDL_Swap16(Uint16 x) -{ - __asm__("rorw #8,%0": "=d"(x): "0"(x):"cc"); - return x; -} -#else -static __inline__ Uint16 -SDL_Swap16(Uint16 x) -{ - return SDL_static_cast(Uint16, ((x << 8) | (x >> 8))); -} -#endif - -#if defined(__GNUC__) && defined(__i386__) -static __inline__ Uint32 -SDL_Swap32(Uint32 x) -{ - __asm__("bswap %0": "=r"(x):"0"(x)); - return x; -} -#elif defined(__GNUC__) && defined(__x86_64__) -static __inline__ Uint32 -SDL_Swap32(Uint32 x) -{ - __asm__("bswapl %0": "=r"(x):"0"(x)); - return x; -} -#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__)) -static __inline__ Uint32 -SDL_Swap32(Uint32 x) -{ - Uint32 result; - - __asm__("rlwimi %0,%2,24,16,23": "=&r"(result):"0"(x >> 24), "r"(x)); - __asm__("rlwimi %0,%2,8,8,15": "=&r"(result):"0"(result), "r"(x)); - __asm__("rlwimi %0,%2,24,0,7": "=&r"(result):"0"(result), "r"(x)); - return result; -} -#elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__)) && !defined(__mcoldfire__) -static __inline__ Uint32 -SDL_Swap32(Uint32 x) -{ - __asm__("rorw #8,%0\n\tswap %0\n\trorw #8,%0": "=d"(x): "0"(x):"cc"); - return x; -} -#else -static __inline__ Uint32 -SDL_Swap32(Uint32 x) -{ - return SDL_static_cast(Uint32, ((x << 24) | ((x << 8) & 0x00FF0000) | - ((x >> 8) & 0x0000FF00) | (x >> 24))); -} -#endif - -#ifdef SDL_HAS_64BIT_TYPE -#if defined(__GNUC__) && defined(__i386__) -static __inline__ Uint64 -SDL_Swap64(Uint64 x) -{ - union - { - struct - { - Uint32 a, b; - } s; - Uint64 u; - } v; - v.u = x; - __asm__("bswapl %0 ; bswapl %1 ; xchgl %0,%1": "=r"(v.s.a), "=r"(v.s.b):"0"(v.s.a), - "1"(v.s. - b)); - return v.u; -} -#elif defined(__GNUC__) && defined(__x86_64__) -static __inline__ Uint64 -SDL_Swap64(Uint64 x) -{ - __asm__("bswapq %0": "=r"(x):"0"(x)); - return x; -} -#else -static __inline__ Uint64 -SDL_Swap64(Uint64 x) -{ - Uint32 hi, lo; - - /* Separate into high and low 32-bit values and swap them */ - lo = SDL_static_cast(Uint32, x & 0xFFFFFFFF); - x >>= 32; - hi = SDL_static_cast(Uint32, x & 0xFFFFFFFF); - x = SDL_Swap32(lo); - x <<= 32; - x |= SDL_Swap32(hi); - return (x); -} -#endif -#else -/** - * This is mainly to keep compilers from complaining in SDL code. - * If there is no real 64-bit datatype, then compilers will complain about - * the fake 64-bit datatype that SDL provides when it compiles user code. - */ -#define SDL_Swap64(X) (X) -#endif /* SDL_HAS_64BIT_TYPE */ - - -static __inline__ float -SDL_SwapFloat(float x) -{ - union - { - float f; - Uint32 ui32; - } swapper; - swapper.f = x; - swapper.ui32 = SDL_Swap32(swapper.ui32); - return swapper.f; -} - - -/** - * \name Swap to native - * Byteswap item from the specified endianness to the native endianness. - */ -/*@{*/ -#if SDL_BYTEORDER == SDL_LIL_ENDIAN -#define SDL_SwapLE16(X) (X) -#define SDL_SwapLE32(X) (X) -#define SDL_SwapLE64(X) (X) -#define SDL_SwapFloatLE(X) (X) -#define SDL_SwapBE16(X) SDL_Swap16(X) -#define SDL_SwapBE32(X) SDL_Swap32(X) -#define SDL_SwapBE64(X) SDL_Swap64(X) -#define SDL_SwapFloatBE(X) SDL_SwapFloat(X) -#else -#define SDL_SwapLE16(X) SDL_Swap16(X) -#define SDL_SwapLE32(X) SDL_Swap32(X) -#define SDL_SwapLE64(X) SDL_Swap64(X) -#define SDL_SwapFloatLE(X) SDL_SwapFloat(X) -#define SDL_SwapBE16(X) (X) -#define SDL_SwapBE32(X) (X) -#define SDL_SwapBE64(X) (X) -#define SDL_SwapFloatBE(X) (X) -#endif -/*@}*//*Swap to native*/ - -/* Ends C function definitions when using C++ */ -#ifdef __cplusplus -/* *INDENT-OFF* */ -} -/* *INDENT-ON* */ -#endif -#include "close_code.h" - -#endif /* _SDL_endian_h */ - -/* vi: set ts=4 sw=4 expandtab: */ |