diff options
Diffstat (limited to 'mesalib/src/mesa/main/compiler.h')
-rw-r--r-- | mesalib/src/mesa/main/compiler.h | 988 |
1 files changed, 494 insertions, 494 deletions
diff --git a/mesalib/src/mesa/main/compiler.h b/mesalib/src/mesa/main/compiler.h index d2caaaa79..89d6cda91 100644 --- a/mesalib/src/mesa/main/compiler.h +++ b/mesalib/src/mesa/main/compiler.h @@ -1,494 +1,494 @@ -/*
- * Mesa 3-D graphics library
- * Version: 7.5
- *
- * 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
- * BRIAN PAUL 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 <ctype.h>
-#if defined(__alpha__) && defined(CCPML)
-#include <cpml.h> /* use Compaq's Fast Math Library on Alpha */
-#else
-#include <math.h>
-#endif
-#include <limits.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <float.h>
-#include <stdarg.h>
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/**
- * Get standard integer types
- */
-#include <stdint.h>
-
-
-/**
- * Sun compilers define __i386 instead of the gcc-style __i386__
- */
-#ifdef __SUNPRO_C
-# if !defined(__i386__) && defined(__i386)
-# define __i386__
-# elif !defined(__amd64__) && defined(__amd64)
-# define __amd64__
-# elif !defined(__sparc__) && defined(__sparc)
-# define __sparc__
-# endif
-# if !defined(__volatile)
-# define __volatile volatile
-# endif
-#endif
-
-
-/**
- * finite macro.
- */
-#if defined(_MSC_VER)
-# define finite _finite
-#elif defined(__WATCOMC__)
-# define finite _finite
-#endif
-
-
-/**
- * Disable assorted warnings
- */
-#if !defined(OPENSTEP) && (defined(__WIN32__) && !defined(__CYGWIN__)) && !defined(BUILD_FOR_SNAP)
-# if !defined(__GNUC__) /* mingw environment */
-# pragma warning( disable : 4068 ) /* unknown pragma */
-# pragma warning( disable : 4710 ) /* function 'foo' not inlined */
-# pragma warning( disable : 4711 ) /* function 'foo' selected for automatic inline expansion */
-# pragma warning( disable : 4127 ) /* conditional expression is constant */
-# if defined(MESA_MINWARN)
-# pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */
-# pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */
-# pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */
-# pragma warning( disable : 4550 ) /* 'function' undefined; assuming extern returning int */
-# pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */
-# endif
-# endif
-#endif
-#if defined(__WATCOMC__)
-# pragma disable_message(201) /* Disable unreachable code warnings */
-#endif
-
-
-
-/**
- * Function inlining
- */
-#ifndef inline
-# ifdef __cplusplus
- /* C++ supports inline keyword */
-# elif defined(__GNUC__)
-# define inline __inline__
-# elif defined(_MSC_VER)
-# define inline __inline
-# elif defined(__ICL)
-# define inline __inline
-# elif defined(__INTEL_COMPILER)
- /* Intel compiler supports inline keyword */
-# elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100)
-# define inline __inline
-# elif defined(__SUNPRO_C) && defined(__C99FEATURES__)
- /* C99 supports inline keyword */
-# elif (__STDC_VERSION__ >= 199901L)
- /* C99 supports inline keyword */
-# else
-# define inline
-# endif
-#endif
-#ifndef INLINE
-# define INLINE inline
-#endif
-
-
-/**
- * PUBLIC/USED macros
- *
- * If we build the library with gcc's -fvisibility=hidden flag, we'll
- * use the PUBLIC macro to mark functions that are to be exported.
- *
- * We also need to define a USED attribute, so the optimizer doesn't
- * inline a static function that we later use in an alias. - ajax
- */
-#ifndef PUBLIC
-# if defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
-# define PUBLIC __attribute__((visibility("default")))
-# define USED __attribute__((used))
-# else
-# define PUBLIC
-# define USED
-# endif
-#endif
-
-
-/**
- * Some compilers don't like some of Mesa's const usage. In those places use
- * CONST instead of const. Pass -DNO_CONST to compilers where this matters.
- */
-#ifdef NO_CONST
-# define CONST
-#else
-# define CONST const
-#endif
-
-
-/**
- * __builtin_expect macros
- */
-#if !defined(__GNUC__)
-# define __builtin_expect(x, y) (x)
-#endif
-
-#ifndef likely
-# ifdef __GNUC__
-# define likely(x) __builtin_expect(!!(x), 1)
-# define unlikely(x) __builtin_expect(!!(x), 0)
-# else
-# define likely(x) (x)
-# define unlikely(x) (x)
-# endif
-#endif
-
-/**
- * The __FUNCTION__ gcc variable is generally only used for debugging.
- * If we're not using gcc, define __FUNCTION__ as a cpp symbol here.
- * Don't define it if using a newer Windows compiler.
- */
-#ifndef __FUNCTION__
-# if defined(__VMS)
-# define __FUNCTION__ "VMS$NL:"
-# elif !defined(__GNUC__) && !defined(__xlC__) && \
- (!defined(_MSC_VER) || _MSC_VER < 1300)
-# if (__STDC_VERSION__ >= 199901L) /* C99 */ || \
- (defined(__SUNPRO_C) && defined(__C99FEATURES__))
-# define __FUNCTION__ __func__
-# else
-# define __FUNCTION__ "<unknown>"
-# endif
-# endif
-#endif
-#ifndef __func__
-# if (__STDC_VERSION__ >= 199901L) || \
- (defined(__SUNPRO_C) && defined(__C99FEATURES__))
- /* __func__ is part of C99 */
-# elif defined(_MSC_VER)
-# if _MSC_VER >= 1300
-# define __func__ __FUNCTION__
-# else
-# define __func__ "<unknown>"
-# endif
-# endif
-#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(_AIX) || defined(__blrts))
-static INLINE GLuint CPU_TO_LE32(GLuint x)
-{
- return (((x & 0x000000ff) << 24) |
- ((x & 0x0000ff00) << 8) |
- ((x & 0x00ff0000) >> 8) |
- ((x & 0xff000000) >> 24));
-}
-#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 )
-
-
-
-#if !defined(CAPI) && defined(WIN32) && !defined(BUILD_FOR_SNAP)
-#define CAPI _cdecl
-#endif
-
-
-/**
- * Create a macro so that asm functions can be linked into compilers other
- * than GNU C
- */
-#ifndef _ASMAPI
-#if defined(WIN32) && !defined(BUILD_FOR_SNAP)/* was: !defined( __GNUC__ ) && !defined( VMS ) && !defined( __INTEL_COMPILER )*/
-#define _ASMAPI __cdecl
-#else
-#define _ASMAPI
-#endif
-#ifdef PTR_DECL_IN_FRONT
-#define _ASMAPIP * _ASMAPI
-#else
-#define _ASMAPIP _ASMAPI *
-#endif
-#endif
-
-#ifdef USE_X86_ASM
-#define _NORMAPI _ASMAPI
-#define _NORMAPIP _ASMAPIP
-#else
-#define _NORMAPI
-#define _NORMAPIP *
-#endif
-
-
-/* This is a macro on IRIX */
-#ifdef _P
-#undef _P
-#endif
-
-
-/* Turn off macro checking systems used by other libraries */
-#ifdef CHECK
-#undef CHECK
-#endif
-
-
-/**
- * ASSERT macro
- */
-#if !defined(_WIN32_WCE)
-#if defined(BUILD_FOR_SNAP) && defined(CHECKED)
-# define ASSERT(X) _CHECK(X)
-#elif defined(DEBUG)
-# define ASSERT(X) assert(X)
-#else
-# define ASSERT(X)
-#endif
-#endif
-
-#if (__GNUC__ >= 3)
-#define PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a)))
-#else
-#define PRINTFLIKE(f, a)
-#endif
-
-#ifndef NULL
-#define NULL 0
-#endif
-
-
-/**
- * LONGSTRING macro
- * gcc -pedantic warns about long string literals, LONGSTRING silences that.
- */
-#if !defined(__GNUC__)
-# define LONGSTRING
-#else
-# define LONGSTRING __extension__
-#endif
-
-
-#ifndef M_PI
-#define M_PI (3.14159265358979323846)
-#endif
-
-#ifndef M_E
-#define M_E (2.7182818284590452354)
-#endif
-
-#ifndef M_LOG2E
-#define M_LOG2E (1.4426950408889634074)
-#endif
-
-#ifndef ONE_DIV_SQRT_LN2
-#define ONE_DIV_SQRT_LN2 (1.201122408786449815)
-#endif
-
-#ifndef FLT_MAX_EXP
-#define FLT_MAX_EXP 128
-#endif
-
-
-/**
- * USE_IEEE: Determine if we're using IEEE floating point
- */
-#if defined(__i386__) || defined(__386__) || defined(__sparc__) || \
- defined(__s390x__) || defined(__powerpc__) || \
- defined(__x86_64__) || \
- defined(ia64) || defined(__ia64__) || \
- defined(__hppa__) || defined(hpux) || \
- defined(__mips) || defined(_MIPS_ARCH) || \
- defined(__arm__) || \
- defined(__sh__) || defined(__m32r__) || \
- (defined(__sun) && defined(_IEEE_754)) || \
- (defined(__alpha__) && (defined(__IEEE_FLOAT) || !defined(VMS)))
-#define USE_IEEE
-#define IEEE_ONE 0x3f800000
-#endif
-
-
-/**
- * START/END_FAST_MATH macros:
- *
- * START_FAST_MATH: Set x86 FPU to faster, 32-bit precision mode (and save
- * original mode to a temporary).
- * END_FAST_MATH: Restore x86 FPU to original mode.
- */
-#if defined(__GNUC__) && defined(__i386__)
-/*
- * Set the x86 FPU control word to guarentee only 32 bits of precision
- * are stored in registers. Allowing the FPU to store more introduces
- * differences between situations where numbers are pulled out of memory
- * vs. situations where the compiler is able to optimize register usage.
- *
- * In the worst case, we force the compiler to use a memory access to
- * truncate the float, by specifying the 'volatile' keyword.
- */
-/* Hardware default: All exceptions masked, extended double precision,
- * round to nearest (IEEE compliant):
- */
-#define DEFAULT_X86_FPU 0x037f
-/* All exceptions masked, single precision, round to nearest:
- */
-#define FAST_X86_FPU 0x003f
-/* The fldcw instruction will cause any pending FP exceptions to be
- * raised prior to entering the block, and we clear any pending
- * exceptions before exiting the block. Hence, asm code has free
- * reign over the FPU while in the fast math block.
- */
-#if defined(NO_FAST_MATH)
-#define START_FAST_MATH(x) \
-do { \
- static GLuint mask = DEFAULT_X86_FPU; \
- __asm__ ( "fnstcw %0" : "=m" (*&(x)) ); \
- __asm__ ( "fldcw %0" : : "m" (mask) ); \
-} while (0)
-#else
-#define START_FAST_MATH(x) \
-do { \
- static GLuint mask = FAST_X86_FPU; \
- __asm__ ( "fnstcw %0" : "=m" (*&(x)) ); \
- __asm__ ( "fldcw %0" : : "m" (mask) ); \
-} while (0)
-#endif
-/* Restore original FPU mode, and clear any exceptions that may have
- * occurred in the FAST_MATH block.
- */
-#define END_FAST_MATH(x) \
-do { \
- __asm__ ( "fnclex ; fldcw %0" : : "m" (*&(x)) ); \
-} while (0)
-
-#elif defined(__WATCOMC__) && defined(__386__)
-#define DEFAULT_X86_FPU 0x037f /* See GCC comments above */
-#define FAST_X86_FPU 0x003f /* See GCC comments above */
-void _watcom_start_fast_math(unsigned short *x,unsigned short *mask);
-#pragma aux _watcom_start_fast_math = \
- "fnstcw word ptr [eax]" \
- "fldcw word ptr [ecx]" \
- parm [eax] [ecx] \
- modify exact [];
-void _watcom_end_fast_math(unsigned short *x);
-#pragma aux _watcom_end_fast_math = \
- "fnclex" \
- "fldcw word ptr [eax]" \
- parm [eax] \
- modify exact [];
-#if defined(NO_FAST_MATH)
-#define START_FAST_MATH(x) \
-do { \
- static GLushort mask = DEFAULT_X86_FPU; \
- _watcom_start_fast_math(&x,&mask); \
-} while (0)
-#else
-#define START_FAST_MATH(x) \
-do { \
- static GLushort mask = FAST_X86_FPU; \
- _watcom_start_fast_math(&x,&mask); \
-} while (0)
-#endif
-#define END_FAST_MATH(x) _watcom_end_fast_math(&x)
-
-#elif defined(_MSC_VER) && defined(_M_IX86)
-#define DEFAULT_X86_FPU 0x037f /* See GCC comments above */
-#define FAST_X86_FPU 0x003f /* See GCC comments above */
-#if defined(NO_FAST_MATH)
-#define START_FAST_MATH(x) do {\
- static GLuint mask = DEFAULT_X86_FPU;\
- __asm fnstcw word ptr [x]\
- __asm fldcw word ptr [mask]\
-} while(0)
-#else
-#define START_FAST_MATH(x) do {\
- static GLuint mask = FAST_X86_FPU;\
- __asm fnstcw word ptr [x]\
- __asm fldcw word ptr [mask]\
-} while(0)
-#endif
-#define END_FAST_MATH(x) do {\
- __asm fnclex\
- __asm fldcw word ptr [x]\
-} while(0)
-
-#else
-#define START_FAST_MATH(x) x = 0
-#define END_FAST_MATH(x) (void)(x)
-#endif
-
-
-#ifndef Elements
-#define Elements(x) (sizeof(x)/sizeof(*(x)))
-#endif
-
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* COMPILER_H */
+/* + * Mesa 3-D graphics library + * Version: 7.5 + * + * 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 + * BRIAN PAUL 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 <ctype.h> +#if defined(__alpha__) && defined(CCPML) +#include <cpml.h> /* use Compaq's Fast Math Library on Alpha */ +#else +#include <math.h> +#endif +#include <limits.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <float.h> +#include <stdarg.h> + + +#ifdef __cplusplus +extern "C" { +#endif + + +/** + * Get standard integer types + */ +#include <stdint.h> + + +/** + * Sun compilers define __i386 instead of the gcc-style __i386__ + */ +#ifdef __SUNPRO_C +# if !defined(__i386__) && defined(__i386) +# define __i386__ +# elif !defined(__amd64__) && defined(__amd64) +# define __amd64__ +# elif !defined(__sparc__) && defined(__sparc) +# define __sparc__ +# endif +# if !defined(__volatile) +# define __volatile volatile +# endif +#endif + + +/** + * finite macro. + */ +#if defined(_MSC_VER) +# define finite _finite +#elif defined(__WATCOMC__) +# define finite _finite +#endif + + +/** + * Disable assorted warnings + */ +#if !defined(OPENSTEP) && (defined(__WIN32__) && !defined(__CYGWIN__)) && !defined(BUILD_FOR_SNAP) +# if !defined(__GNUC__) /* mingw environment */ +# pragma warning( disable : 4068 ) /* unknown pragma */ +# pragma warning( disable : 4710 ) /* function 'foo' not inlined */ +# pragma warning( disable : 4711 ) /* function 'foo' selected for automatic inline expansion */ +# pragma warning( disable : 4127 ) /* conditional expression is constant */ +# if defined(MESA_MINWARN) +# pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */ +# pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */ +# pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */ +# pragma warning( disable : 4550 ) /* 'function' undefined; assuming extern returning int */ +# pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */ +# endif +# endif +#endif +#if defined(__WATCOMC__) +# pragma disable_message(201) /* Disable unreachable code warnings */ +#endif + + + +/** + * Function inlining + */ +#ifndef inline +# ifdef __cplusplus + /* C++ supports inline keyword */ +# elif defined(__GNUC__) +# define inline __inline__ +# elif defined(_MSC_VER) +# define inline __inline +# elif defined(__ICL) +# define inline __inline +# elif defined(__INTEL_COMPILER) + /* Intel compiler supports inline keyword */ +# elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100) +# define inline __inline +# elif defined(__SUNPRO_C) && defined(__C99FEATURES__) + /* C99 supports inline keyword */ +# elif (__STDC_VERSION__ >= 199901L) + /* C99 supports inline keyword */ +# else +# define inline +# endif +#endif +#ifndef INLINE +# define INLINE inline +#endif + + +/** + * PUBLIC/USED macros + * + * If we build the library with gcc's -fvisibility=hidden flag, we'll + * use the PUBLIC macro to mark functions that are to be exported. + * + * We also need to define a USED attribute, so the optimizer doesn't + * inline a static function that we later use in an alias. - ajax + */ +#ifndef PUBLIC +# if defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)) +# define PUBLIC __attribute__((visibility("default"))) +# define USED __attribute__((used)) +# else +# define PUBLIC +# define USED +# endif +#endif + + +/** + * Some compilers don't like some of Mesa's const usage. In those places use + * CONST instead of const. Pass -DNO_CONST to compilers where this matters. + */ +#ifdef NO_CONST +# define CONST +#else +# define CONST const +#endif + + +/** + * __builtin_expect macros + */ +#if !defined(__GNUC__) +# define __builtin_expect(x, y) (x) +#endif + +#ifndef likely +# ifdef __GNUC__ +# define likely(x) __builtin_expect(!!(x), 1) +# define unlikely(x) __builtin_expect(!!(x), 0) +# else +# define likely(x) (x) +# define unlikely(x) (x) +# endif +#endif + +/** + * The __FUNCTION__ gcc variable is generally only used for debugging. + * If we're not using gcc, define __FUNCTION__ as a cpp symbol here. + * Don't define it if using a newer Windows compiler. + */ +#ifndef __FUNCTION__ +# if defined(__VMS) +# define __FUNCTION__ "VMS$NL:" +# elif !defined(__GNUC__) && !defined(__xlC__) && \ + (!defined(_MSC_VER) || _MSC_VER < 1300) +# if (__STDC_VERSION__ >= 199901L) /* C99 */ || \ + (defined(__SUNPRO_C) && defined(__C99FEATURES__)) +# define __FUNCTION__ __func__ +# else +# define __FUNCTION__ "<unknown>" +# endif +# endif +#endif +#ifndef __func__ +# if (__STDC_VERSION__ >= 199901L) || \ + (defined(__SUNPRO_C) && defined(__C99FEATURES__)) + /* __func__ is part of C99 */ +# elif defined(_MSC_VER) +# if _MSC_VER >= 1300 +# define __func__ __FUNCTION__ +# else +# define __func__ "<unknown>" +# endif +# endif +#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(_AIX) || defined(__blrts)) +static INLINE GLuint CPU_TO_LE32(GLuint x) +{ + return (((x & 0x000000ff) << 24) | + ((x & 0x0000ff00) << 8) | + ((x & 0x00ff0000) >> 8) | + ((x & 0xff000000) >> 24)); +} +#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 ) + + + +#if !defined(CAPI) && defined(WIN32) && !defined(BUILD_FOR_SNAP) +#define CAPI _cdecl +#endif + + +/** + * Create a macro so that asm functions can be linked into compilers other + * than GNU C + */ +#ifndef _ASMAPI +#if defined(WIN32) && !defined(BUILD_FOR_SNAP)/* was: !defined( __GNUC__ ) && !defined( VMS ) && !defined( __INTEL_COMPILER )*/ +#define _ASMAPI __cdecl +#else +#define _ASMAPI +#endif +#ifdef PTR_DECL_IN_FRONT +#define _ASMAPIP * _ASMAPI +#else +#define _ASMAPIP _ASMAPI * +#endif +#endif + +#ifdef USE_X86_ASM +#define _NORMAPI _ASMAPI +#define _NORMAPIP _ASMAPIP +#else +#define _NORMAPI +#define _NORMAPIP * +#endif + + +/* This is a macro on IRIX */ +#ifdef _P +#undef _P +#endif + + +/* Turn off macro checking systems used by other libraries */ +#ifdef CHECK +#undef CHECK +#endif + + +/** + * ASSERT macro + */ +#if !defined(_WIN32_WCE) +#if defined(BUILD_FOR_SNAP) && defined(CHECKED) +# define ASSERT(X) _CHECK(X) +#elif defined(DEBUG) +# define ASSERT(X) assert(X) +#else +# define ASSERT(X) +#endif +#endif + +#if (__GNUC__ >= 3) +#define PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a))) +#else +#define PRINTFLIKE(f, a) +#endif + +#ifndef NULL +#define NULL 0 +#endif + + +/** + * LONGSTRING macro + * gcc -pedantic warns about long string literals, LONGSTRING silences that. + */ +#if !defined(__GNUC__) +# define LONGSTRING +#else +# define LONGSTRING __extension__ +#endif + + +#ifndef M_PI +#define M_PI (3.14159265358979323846) +#endif + +#ifndef M_E +#define M_E (2.7182818284590452354) +#endif + +#ifndef M_LOG2E +#define M_LOG2E (1.4426950408889634074) +#endif + +#ifndef ONE_DIV_SQRT_LN2 +#define ONE_DIV_SQRT_LN2 (1.201122408786449815) +#endif + +#ifndef FLT_MAX_EXP +#define FLT_MAX_EXP 128 +#endif + + +/** + * USE_IEEE: Determine if we're using IEEE floating point + */ +#if defined(__i386__) || defined(__386__) || defined(__sparc__) || \ + defined(__s390x__) || defined(__powerpc__) || \ + defined(__x86_64__) || \ + defined(ia64) || defined(__ia64__) || \ + defined(__hppa__) || defined(hpux) || \ + defined(__mips) || defined(_MIPS_ARCH) || \ + defined(__arm__) || \ + defined(__sh__) || defined(__m32r__) || \ + (defined(__sun) && defined(_IEEE_754)) || \ + (defined(__alpha__) && (defined(__IEEE_FLOAT) || !defined(VMS))) +#define USE_IEEE +#define IEEE_ONE 0x3f800000 +#endif + + +/** + * START/END_FAST_MATH macros: + * + * START_FAST_MATH: Set x86 FPU to faster, 32-bit precision mode (and save + * original mode to a temporary). + * END_FAST_MATH: Restore x86 FPU to original mode. + */ +#if defined(__GNUC__) && defined(__i386__) +/* + * Set the x86 FPU control word to guarentee only 32 bits of precision + * are stored in registers. Allowing the FPU to store more introduces + * differences between situations where numbers are pulled out of memory + * vs. situations where the compiler is able to optimize register usage. + * + * In the worst case, we force the compiler to use a memory access to + * truncate the float, by specifying the 'volatile' keyword. + */ +/* Hardware default: All exceptions masked, extended double precision, + * round to nearest (IEEE compliant): + */ +#define DEFAULT_X86_FPU 0x037f +/* All exceptions masked, single precision, round to nearest: + */ +#define FAST_X86_FPU 0x003f +/* The fldcw instruction will cause any pending FP exceptions to be + * raised prior to entering the block, and we clear any pending + * exceptions before exiting the block. Hence, asm code has free + * reign over the FPU while in the fast math block. + */ +#if defined(NO_FAST_MATH) +#define START_FAST_MATH(x) \ +do { \ + static GLuint mask = DEFAULT_X86_FPU; \ + __asm__ ( "fnstcw %0" : "=m" (*&(x)) ); \ + __asm__ ( "fldcw %0" : : "m" (mask) ); \ +} while (0) +#else +#define START_FAST_MATH(x) \ +do { \ + static GLuint mask = FAST_X86_FPU; \ + __asm__ ( "fnstcw %0" : "=m" (*&(x)) ); \ + __asm__ ( "fldcw %0" : : "m" (mask) ); \ +} while (0) +#endif +/* Restore original FPU mode, and clear any exceptions that may have + * occurred in the FAST_MATH block. + */ +#define END_FAST_MATH(x) \ +do { \ + __asm__ ( "fnclex ; fldcw %0" : : "m" (*&(x)) ); \ +} while (0) + +#elif defined(__WATCOMC__) && defined(__386__) +#define DEFAULT_X86_FPU 0x037f /* See GCC comments above */ +#define FAST_X86_FPU 0x003f /* See GCC comments above */ +void _watcom_start_fast_math(unsigned short *x,unsigned short *mask); +#pragma aux _watcom_start_fast_math = \ + "fnstcw word ptr [eax]" \ + "fldcw word ptr [ecx]" \ + parm [eax] [ecx] \ + modify exact []; +void _watcom_end_fast_math(unsigned short *x); +#pragma aux _watcom_end_fast_math = \ + "fnclex" \ + "fldcw word ptr [eax]" \ + parm [eax] \ + modify exact []; +#if defined(NO_FAST_MATH) +#define START_FAST_MATH(x) \ +do { \ + static GLushort mask = DEFAULT_X86_FPU; \ + _watcom_start_fast_math(&x,&mask); \ +} while (0) +#else +#define START_FAST_MATH(x) \ +do { \ + static GLushort mask = FAST_X86_FPU; \ + _watcom_start_fast_math(&x,&mask); \ +} while (0) +#endif +#define END_FAST_MATH(x) _watcom_end_fast_math(&x) + +#elif defined(_MSC_VER) && defined(_M_IX86) +#define DEFAULT_X86_FPU 0x037f /* See GCC comments above */ +#define FAST_X86_FPU 0x003f /* See GCC comments above */ +#if defined(NO_FAST_MATH) +#define START_FAST_MATH(x) do {\ + static GLuint mask = DEFAULT_X86_FPU;\ + __asm fnstcw word ptr [x]\ + __asm fldcw word ptr [mask]\ +} while(0) +#else +#define START_FAST_MATH(x) do {\ + static GLuint mask = FAST_X86_FPU;\ + __asm fnstcw word ptr [x]\ + __asm fldcw word ptr [mask]\ +} while(0) +#endif +#define END_FAST_MATH(x) do {\ + __asm fnclex\ + __asm fldcw word ptr [x]\ +} while(0) + +#else +#define START_FAST_MATH(x) x = 0 +#define END_FAST_MATH(x) (void)(x) +#endif + + +#ifndef Elements +#define Elements(x) (sizeof(x)/sizeof(*(x))) +#endif + + + +#ifdef __cplusplus +} +#endif + + +#endif /* COMPILER_H */ |