/*
* 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.
* 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.
+ * 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.
*/
#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>
+#include "c99_compat.h" /* inline, __func__, etc. */
+
#ifdef __cplusplus
extern "C" {
/**
* Get standard integer types
*/
-#if defined(_MSC_VER)
- typedef __int8 int8_t;
- typedef unsigned __int8 uint8_t;
- typedef __int16 int16_t;
- typedef unsigned __int16 uint16_t;
-# ifndef __eglplatform_h_
- typedef __int32 int32_t;
-# endif
- typedef unsigned __int32 uint32_t;
- typedef __int64 int64_t;
- typedef unsigned __int64 uint64_t;
-
-# if defined(_WIN64)
- typedef __int64 intptr_t;
- typedef unsigned __int64 uintptr_t;
-# else
- typedef __int32 intptr_t;
- typedef unsigned __int32 uintptr_t;
-# endif
-
-# define INT64_C(__val) __val##i64
-# define UINT64_C(__val) __val##ui64
-#else
-# include <stdint.h>
-#endif
+#include <stdint.h>
/**
*/
#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(_WIN32) && !defined(__CYGWIN__)
# if !defined(__GNUC__) /* mingw environment */
# pragma warning( disable : 4068 ) /* unknown pragma */
# pragma warning( disable : 4710 ) /* function 'foo' not inlined */
# endif
# endif
#endif
-#if defined(__WATCOMC__)
-# pragma disable_message(201) /* Disable unreachable code warnings */
-#endif
-/**
- * Function inlining
- */
-#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 */
+/* XXX: Use standard `inline` keyword instead */
+#ifndef INLINE
# define INLINE inline
-#else
-# define INLINE
#endif
* 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
*/
-#if defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
-# define PUBLIC __attribute__((visibility("default")))
-# define USED __attribute__((used))
-#else
-# define PUBLIC
-# define USED
-#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
+#ifndef PUBLIC
+# if (defined(__GNUC__) && __GNUC__ >= 4) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
+# define PUBLIC __attribute__((visibility("default")))
+# define USED __attribute__((used))
+# else
+# define PUBLIC
+# define USED
+# endif
#endif
* __builtin_expect macros
*/
#if !defined(__GNUC__)
-# define __builtin_expect(x, y) x
-#endif
-
-#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)
+# define __builtin_expect(x, y) (x)
#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__
+#ifndef likely
+# ifdef __GNUC__
+# define likely(x) __builtin_expect(!!(x), 1)
+# define unlikely(x) __builtin_expect(!!(x), 0)
# else
-# define __FUNCTION__ "<unknown>"
+# define likely(x) (x)
+# define unlikely(x) (x)
# endif
-# endif
#endif
+/* XXX: Use standard `__func__` instead */
+#ifndef __FUNCTION__
+# define __FUNCTION__ __func__
+#endif
/**
* Either define MESA_BIG_ENDIAN or MESA_LITTLE_ENDIAN, and CPU_TO_LE32.
((x & 0x00ff0000) >> 8) |
((x & 0xff000000) >> 24));
}
+#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 )
-#if !defined(CAPI) && defined(WIN32) && !defined(BUILD_FOR_SNAP)
+#if !defined(CAPI) && defined(_WIN32)
#define CAPI _cdecl
#endif
* than GNU C
*/
#ifndef _ASMAPI
-#if defined(WIN32) && !defined(BUILD_FOR_SNAP)/* was: !defined( __GNUC__ ) && !defined( VMS ) && !defined( __INTEL_COMPILER )*/
+#if defined(_WIN32)
#define _ASMAPI __cdecl
#else
#define _ASMAPI
#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
* ASSERT macro
*/
#if !defined(_WIN32_WCE)
-#if defined(BUILD_FOR_SNAP) && defined(CHECKED)
-# define ASSERT(X) _CHECK(X)
-#elif defined(DEBUG)
+#if defined(DEBUG)
# define ASSERT(X) assert(X)
#else
# define ASSERT(X)
#endif
+/**
+ * Static (compile-time) assertion.
+ * Basically, use COND to dimension an array. If COND is false/zero the
+ * array size will be -1 and we'll get a compilation error.
+ */
+#define STATIC_ASSERT(COND) \
+ do { \
+ (void) sizeof(char [1 - 2*!(COND)]); \
+ } while (0)
+
+/**
+ * Unreachable macro. Useful for suppressing "control reaches end of non-void
+ * function" warnings.
+ */
+#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 5
+#define unreachable() __builtin_unreachable()
+#elif (defined(__clang__) && defined(__has_builtin))
+# if __has_builtin(__builtin_unreachable)
+# define unreachable() __builtin_unreachable()
+# endif
+#endif
+
+#ifndef unreachable
+#define unreachable()
+#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
+/* Used to optionally mark structures with misaligned elements or size as
+ * packed, to trade off performance for space.
+ */
+#if (__GNUC__ >= 3)
+#define PACKED __attribute__((__packed__))
+#else
+#define PACKED
+#endif
+
/**
* LONGSTRING macro
#ifndef M_PI
-#define M_PI (3.1415926536)
+#define M_PI (3.14159265358979323846)
#endif
#ifndef M_E
#define M_E (2.7182818284590452354)
#endif
-#ifndef ONE_DIV_LN2
-#define ONE_DIV_LN2 (1.442695040888963456)
+#ifndef M_LOG2E
+#define M_LOG2E (1.4426950408889634074)
#endif
#ifndef ONE_DIV_SQRT_LN2
* USE_IEEE: Determine if we're using IEEE floating point
*/
#if defined(__i386__) || defined(__386__) || defined(__sparc__) || \
- defined(__s390x__) || defined(__powerpc__) || \
+ defined(__s390__) || defined(__s390x__) || defined(__powerpc__) || \
defined(__x86_64__) || \
+ defined(__m68k__) || \
defined(ia64) || defined(__ia64__) || \
defined(__hppa__) || defined(hpux) || \
defined(__mips) || defined(_MIPS_ARCH) || \
- defined(__arm__) || \
+ defined(__arm__) || defined(__aarch64__) || \
defined(__sh__) || defined(__m32r__) || \
(defined(__sun) && defined(_IEEE_754)) || \
- (defined(__alpha__) && (defined(__IEEE_FLOAT) || !defined(VMS)))
+ defined(__alpha__)
#define USE_IEEE
#define IEEE_ONE 0x3f800000
#endif
__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 */
#define Elements(x) (sizeof(x)/sizeof(*(x)))
#endif
-
+#ifdef __cplusplus
+/**
+ * Macro function that evaluates to true if T is a trivially
+ * destructible type -- that is, if its (non-virtual) destructor
+ * performs no action and all member variables and base classes are
+ * trivially destructible themselves.
+ */
+# if defined(__GNUC__)
+# if ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)))
+# define HAS_TRIVIAL_DESTRUCTOR(T) __has_trivial_destructor(T)
+# endif
+# elif (defined(__clang__) && defined(__has_feature))
+# if __has_feature(has_trivial_destructor)
+# define HAS_TRIVIAL_DESTRUCTOR(T) __has_trivial_destructor(T)
+# endif
+# endif
+# ifndef HAS_TRIVIAL_DESTRUCTOR
+ /* It's always safe (if inefficient) to assume that a
+ * destructor is non-trivial.
+ */
+# define HAS_TRIVIAL_DESTRUCTOR(T) (false)
+# endif
+#endif
#ifdef __cplusplus
}
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