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gfx/cairo/libpixman/src/pixman-compiler.h@b8a032363ba2 (annotated)

gfx/cairo/libpixman/src/pixman-compiler.h

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	/* Pixman uses some non-standard compiler features. This file ensures
michael@0	2	* they exist
michael@0	3	*
michael@0	4	* The features are:
michael@0	5	*
michael@0	6	* FUNC must be defined to expand to the current function
michael@0	7	* PIXMAN_EXPORT should be defined to whatever is required to
michael@0	8	* export functions from a shared library
michael@0	9	* limits limits for various types must be defined
michael@0	10	* inline must be defined
michael@0	11	* force_inline must be defined
michael@0	12	*/
michael@0	13	#if defined (__GNUC__)
michael@0	14	# define FUNC ((const char*) (__PRETTY_FUNCTION__))
michael@0	15	#elif defined (__sun) || (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
michael@0	16	# define FUNC ((const char*) (__func__))
michael@0	17	#else
michael@0	18	# define FUNC ((const char*) ("???"))
michael@0	19	#endif
michael@0	20
michael@0	21	#if defined (__GNUC__)
michael@0	22	# define MAYBE_UNUSED __attribute__((unused))
michael@0	23	#else
michael@0	24	# define MAYBE_UNUSED
michael@0	25	#endif
michael@0	26
michael@0	27	#ifndef INT16_MIN
michael@0	28	# define INT16_MIN (-32767-1)
michael@0	29	#endif
michael@0	30
michael@0	31	#ifndef INT16_MAX
michael@0	32	# define INT16_MAX (32767)
michael@0	33	#endif
michael@0	34
michael@0	35	#ifndef INT32_MIN
michael@0	36	# define INT32_MIN (-2147483647-1)
michael@0	37	#endif
michael@0	38
michael@0	39	#ifndef INT32_MAX
michael@0	40	# define INT32_MAX (2147483647)
michael@0	41	#endif
michael@0	42
michael@0	43	#ifndef UINT32_MIN
michael@0	44	# define UINT32_MIN (0)
michael@0	45	#endif
michael@0	46
michael@0	47	#ifndef UINT32_MAX
michael@0	48	# define UINT32_MAX (4294967295U)
michael@0	49	#endif
michael@0	50
michael@0	51	#ifndef INT64_MIN
michael@0	52	# define INT64_MIN (-9223372036854775807-1)
michael@0	53	#endif
michael@0	54
michael@0	55	#ifndef INT64_MAX
michael@0	56	# define INT64_MAX (9223372036854775807)
michael@0	57	#endif
michael@0	58
michael@0	59	#ifndef SIZE_MAX
michael@0	60	# define SIZE_MAX ((size_t)-1)
michael@0	61	#endif
michael@0	62
michael@0	63
michael@0	64	#ifndef M_PI
michael@0	65	# define M_PI 3.14159265358979323846
michael@0	66	#endif
michael@0	67
michael@0	68	#ifdef _MSC_VER
michael@0	69	/* 'inline' is available only in C++ in MSVC */
michael@0	70	# define inline __inline
michael@0	71	# define force_inline __forceinline
michael@0	72	# define noinline __declspec(noinline)
michael@0	73	#elif defined __GNUC__ || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
michael@0	74	# define inline __inline__
michael@0	75	# define force_inline __inline__ __attribute__ ((__always_inline__))
michael@0	76	# define noinline __attribute__((noinline))
michael@0	77	#else
michael@0	78	# ifndef force_inline
michael@0	79	# define force_inline inline
michael@0	80	# endif
michael@0	81	# ifndef noinline
michael@0	82	# define noinline
michael@0	83	# endif
michael@0	84	#endif
michael@0	85
michael@0	86	/* In libxul builds we don't ever want to export pixman symbols */
michael@0	87	#if 1
michael@0	88	#include "prcpucfg.h"
michael@0	89
michael@0	90	#ifdef HAVE_VISIBILITY_HIDDEN_ATTRIBUTE
michael@0	91	#define CVISIBILITY_HIDDEN __attribute__((visibility("hidden")))
michael@0	92	#elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
michael@0	93	#define CVISIBILITY_HIDDEN __hidden
michael@0	94	#else
michael@0	95	#define CVISIBILITY_HIDDEN
michael@0	96	#endif
michael@0	97
michael@0	98	/* In libxul builds we don't ever want to export cairo symbols */
michael@0	99	#define PIXMAN_EXPORT extern CVISIBILITY_HIDDEN
michael@0	100
michael@0	101	#else
michael@0	102
michael@0	103	/* GCC visibility */
michael@0	104	#if defined(__GNUC__) && __GNUC__ >= 4 && !defined(_WIN32)
michael@0	105	# define PIXMAN_EXPORT __attribute__ ((visibility("default")))
michael@0	106	/* Sun Studio 8 visibility */
michael@0	107	#elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
michael@0	108	# define PIXMAN_EXPORT __global
michael@0	109	#else
michael@0	110	# define PIXMAN_EXPORT
michael@0	111	#endif
michael@0	112
michael@0	113	#endif
michael@0	114
michael@0	115	/* member offsets */
michael@0	116	#define CONTAINER_OF(type, member, data) \
michael@0	117	((type *)(((uint8_t *)data) - offsetof (type, member)))
michael@0	118
michael@0	119	/* TLS */
michael@0	120	#if defined(PIXMAN_NO_TLS)
michael@0	121
michael@0	122	# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
michael@0	123	static type name
michael@0	124	# define PIXMAN_GET_THREAD_LOCAL(name) \
michael@0	125	(&name)
michael@0	126
michael@0	127	#elif defined(TLS)
michael@0	128
michael@0	129	# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
michael@0	130	static TLS type name
michael@0	131	# define PIXMAN_GET_THREAD_LOCAL(name) \
michael@0	132	(&name)
michael@0	133
michael@0	134	#elif defined(__MINGW32__) || defined(PIXMAN_USE_XP_DLL_TLS_WORKAROUND)
michael@0	135
michael@0	136	# define _NO_W32_PSEUDO_MODIFIERS
michael@0	137	# include <windows.h>
michael@0	138	#undef IN
michael@0	139	#undef OUT
michael@0	140
michael@0	141	# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
michael@0	142	static volatile int tls_ ## name ## _initialized = 0; \
michael@0	143	static void *tls_ ## name ## _mutex = NULL; \
michael@0	144	static unsigned tls_ ## name ## _index; \
michael@0	145	\
michael@0	146	static type * \
michael@0	147	tls_ ## name ## _alloc (void) \
michael@0	148	{ \
michael@0	149	type *value = calloc (1, sizeof (type)); \
michael@0	150	if (value) \
michael@0	151	TlsSetValue (tls_ ## name ## _index, value); \
michael@0	152	return value; \
michael@0	153	} \
michael@0	154	\
michael@0	155	static force_inline type * \
michael@0	156	tls_ ## name ## _get (void) \
michael@0	157	{ \
michael@0	158	type *value; \
michael@0	159	if (!tls_ ## name ## _initialized) \
michael@0	160	{ \
michael@0	161	if (!tls_ ## name ## _mutex) \
michael@0	162	{ \
michael@0	163	void *mutex = CreateMutexA (NULL, 0, NULL); \
michael@0	164	if (InterlockedCompareExchangePointer ( \
michael@0	165	&tls_ ## name ## _mutex, mutex, NULL) != NULL) \
michael@0	166	{ \
michael@0	167	CloseHandle (mutex); \
michael@0	168	} \
michael@0	169	} \
michael@0	170	WaitForSingleObject (tls_ ## name ## _mutex, 0xFFFFFFFF); \
michael@0	171	if (!tls_ ## name ## _initialized) \
michael@0	172	{ \
michael@0	173	tls_ ## name ## _index = TlsAlloc (); \
michael@0	174	tls_ ## name ## _initialized = 1; \
michael@0	175	} \
michael@0	176	ReleaseMutex (tls_ ## name ## _mutex); \
michael@0	177	} \
michael@0	178	if (tls_ ## name ## _index == 0xFFFFFFFF) \
michael@0	179	return NULL; \
michael@0	180	value = TlsGetValue (tls_ ## name ## _index); \
michael@0	181	if (!value) \
michael@0	182	value = tls_ ## name ## _alloc (); \
michael@0	183	return value; \
michael@0	184	}
michael@0	185
michael@0	186	# define PIXMAN_GET_THREAD_LOCAL(name) \
michael@0	187	tls_ ## name ## _get ()
michael@0	188
michael@0	189	#elif defined(_MSC_VER)
michael@0	190
michael@0	191	# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
michael@0	192	static __declspec(thread) type name
michael@0	193	# define PIXMAN_GET_THREAD_LOCAL(name) \
michael@0	194	(&name)
michael@0	195
michael@0	196	#elif defined(HAVE_PTHREAD_SETSPECIFIC)
michael@0	197
michael@0	198	#include <pthread.h>
michael@0	199
michael@0	200	# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
michael@0	201	static pthread_once_t tls_ ## name ## _once_control = PTHREAD_ONCE_INIT; \
michael@0	202	static pthread_key_t tls_ ## name ## _key; \
michael@0	203	\
michael@0	204	static void \
michael@0	205	tls_ ## name ## _destroy_value (void *value) \
michael@0	206	{ \
michael@0	207	free (value); \
michael@0	208	} \
michael@0	209	\
michael@0	210	static void \
michael@0	211	tls_ ## name ## _make_key (void) \
michael@0	212	{ \
michael@0	213	pthread_key_create (&tls_ ## name ## _key, \
michael@0	214	tls_ ## name ## _destroy_value); \
michael@0	215	} \
michael@0	216	\
michael@0	217	static type * \
michael@0	218	tls_ ## name ## _alloc (void) \
michael@0	219	{ \
michael@0	220	type *value = calloc (1, sizeof (type)); \
michael@0	221	if (value) \
michael@0	222	pthread_setspecific (tls_ ## name ## _key, value); \
michael@0	223	return value; \
michael@0	224	} \
michael@0	225	\
michael@0	226	static force_inline type * \
michael@0	227	tls_ ## name ## _get (void) \
michael@0	228	{ \
michael@0	229	type *value = NULL; \
michael@0	230	if (pthread_once (&tls_ ## name ## _once_control, \
michael@0	231	tls_ ## name ## _make_key) == 0) \
michael@0	232	{ \
michael@0	233	value = pthread_getspecific (tls_ ## name ## _key); \
michael@0	234	if (!value) \
michael@0	235	value = tls_ ## name ## _alloc (); \
michael@0	236	} \
michael@0	237	return value; \
michael@0	238	}
michael@0	239
michael@0	240	# define PIXMAN_GET_THREAD_LOCAL(name) \
michael@0	241	tls_ ## name ## _get ()
michael@0	242
michael@0	243	#else
michael@0	244
michael@0	245	# error "Unknown thread local support for this system. Pixman will not work with multiple threads. Define PIXMAN_NO_TLS to acknowledge and accept this limitation and compile pixman without thread-safety support."
michael@0	246
michael@0	247	#endif