aboutsummaryrefslogtreecommitdiff
path: root/mesalib/src/mesa/main/compiler.h
diff options
context:
space:
mode:
Diffstat (limited to 'mesalib/src/mesa/main/compiler.h')
-rw-r--r--mesalib/src/mesa/main/compiler.h992
1 files changed, 496 insertions, 496 deletions
diff --git a/mesalib/src/mesa/main/compiler.h b/mesalib/src/mesa/main/compiler.h
index ee7d0b2f8..f46f72352 100644
--- a/mesalib/src/mesa/main/compiler.h
+++ b/mesalib/src/mesa/main/compiler.h
@@ -1,496 +1,496 @@
-/*
- * 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>
-#if defined(__linux__) && defined(__i386__)
-#include <fpu_control.h>
-#endif
-#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
-# if defined(__GNUC__)
-# define INLINE __inline__
-# elif defined(__MSC__)
-# define INLINE __inline
-# elif defined(_MSC_VER)
-# define INLINE __inline
-# elif defined(__ICL)
-# define INLINE __inline
-# elif defined(__INTEL_COMPILER)
-# define INLINE inline
-# elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100)
-# define INLINE __inline
-# elif defined(__SUNPRO_C) && defined(__C99FEATURES__)
-# define INLINE inline
-# define __inline inline
-# define __inline__ inline
-# elif (__STDC_VERSION__ >= 199901L) /* C99 */
-# define INLINE inline
-# else
-# define INLINE
-# endif
-#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>
+#if defined(__linux__) && defined(__i386__)
+#include <fpu_control.h>
+#endif
+#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
+# if defined(__GNUC__)
+# define INLINE __inline__
+# elif defined(__MSC__)
+# define INLINE __inline
+# elif defined(_MSC_VER)
+# define INLINE __inline
+# elif defined(__ICL)
+# define INLINE __inline
+# elif defined(__INTEL_COMPILER)
+# define INLINE inline
+# elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100)
+# define INLINE __inline
+# elif defined(__SUNPRO_C) && defined(__C99FEATURES__)
+# define INLINE inline
+# define __inline inline
+# define __inline__ inline
+# elif (__STDC_VERSION__ >= 199901L) /* C99 */
+# define INLINE inline
+# else
+# define INLINE
+# endif
+#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 */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 05:33:17 +0000