| /* Pixman uses some non-standard compiler features. This file ensures |
| * they exist |
| * |
| * The features are: |
| * |
| * FUNC must be defined to expand to the current function |
| * PIXMAN_EXPORT should be defined to whatever is required to |
| * export functions from a shared library |
| * limits limits for various types must be defined |
| * inline must be defined |
| * force_inline must be defined |
| */ |
| #if defined (__GNUC__) |
| # define FUNC ((const char*) (__PRETTY_FUNCTION__)) |
| #elif defined (__sun) || (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) |
| # define FUNC ((const char*) (__func__)) |
| #else |
| # define FUNC ((const char*) ("???")) |
| #endif |
| |
| #ifndef INT16_MIN |
| # define INT16_MIN (-32767-1) |
| #endif |
| |
| #ifndef INT16_MAX |
| # define INT16_MAX (32767) |
| #endif |
| |
| #ifndef INT32_MIN |
| # define INT32_MIN (-2147483647-1) |
| #endif |
| |
| #ifndef INT32_MAX |
| # define INT32_MAX (2147483647) |
| #endif |
| |
| #ifndef UINT32_MIN |
| # define UINT32_MIN (0) |
| #endif |
| |
| #ifndef UINT32_MAX |
| # define UINT32_MAX (4294967295U) |
| #endif |
| |
| #ifndef M_PI |
| # define M_PI 3.14159265358979323846 |
| #endif |
| |
| #ifdef _MSC_VER |
| /* 'inline' is available only in C++ in MSVC */ |
| # define inline __inline |
| # define force_inline __forceinline |
| # define noinline __declspec(noinline) |
| #elif defined __GNUC__ || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)) |
| # define inline __inline__ |
| # define force_inline __inline__ __attribute__ ((__always_inline__)) |
| # define noinline __attribute__((noinline)) |
| #else |
| # ifndef force_inline |
| # define force_inline inline |
| # endif |
| # ifndef noinline |
| # define noinline |
| # endif |
| #endif |
| |
| /* GCC visibility */ |
| #if defined(__GNUC__) && __GNUC__ >= 4 && !defined(_WIN32) |
| # define PIXMAN_EXPORT __attribute__ ((visibility("default"))) |
| /* Sun Studio 8 visibility */ |
| #elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550) |
| # define PIXMAN_EXPORT __global |
| #else |
| # define PIXMAN_EXPORT |
| #endif |
| |
| /* TLS */ |
| #if defined(PIXMAN_NO_TLS) |
| |
| # define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \ |
| static type name |
| # define PIXMAN_GET_THREAD_LOCAL(name) \ |
| (&name) |
| |
| #elif defined(TOOLCHAIN_SUPPORTS__THREAD) |
| |
| # define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \ |
| static __thread type name |
| # define PIXMAN_GET_THREAD_LOCAL(name) \ |
| (&name) |
| |
| #elif defined(__MINGW32__) |
| |
| # define _NO_W32_PSEUDO_MODIFIERS |
| # include <windows.h> |
| |
| # define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \ |
| static volatile int tls_ ## name ## _initialized = 0; \ |
| static void *tls_ ## name ## _mutex = NULL; \ |
| static unsigned tls_ ## name ## _index; \ |
| \ |
| static type * \ |
| tls_ ## name ## _alloc (void) \ |
| { \ |
| type *value = calloc (1, sizeof (type)); \ |
| if (value) \ |
| TlsSetValue (tls_ ## name ## _index, value); \ |
| return value; \ |
| } \ |
| \ |
| static force_inline type * \ |
| tls_ ## name ## _get (void) \ |
| { \ |
| type *value; \ |
| if (!tls_ ## name ## _initialized) \ |
| { \ |
| if (!tls_ ## name ## _mutex) \ |
| { \ |
| void *mutex = CreateMutexA (NULL, 0, NULL); \ |
| if (InterlockedCompareExchangePointer ( \ |
| &tls_ ## name ## _mutex, mutex, NULL) != NULL) \ |
| { \ |
| CloseHandle (mutex); \ |
| } \ |
| } \ |
| WaitForSingleObject (tls_ ## name ## _mutex, 0xFFFFFFFF); \ |
| if (!tls_ ## name ## _initialized) \ |
| { \ |
| tls_ ## name ## _index = TlsAlloc (); \ |
| tls_ ## name ## _initialized = 1; \ |
| } \ |
| ReleaseMutex (tls_ ## name ## _mutex); \ |
| } \ |
| if (tls_ ## name ## _index == 0xFFFFFFFF) \ |
| return NULL; \ |
| value = TlsGetValue (tls_ ## name ## _index); \ |
| if (!value) \ |
| value = tls_ ## name ## _alloc (); \ |
| return value; \ |
| } |
| |
| # define PIXMAN_GET_THREAD_LOCAL(name) \ |
| tls_ ## name ## _get () |
| |
| #elif defined(_MSC_VER) |
| |
| # define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \ |
| static __declspec(thread) type name |
| # define PIXMAN_GET_THREAD_LOCAL(name) \ |
| (&name) |
| |
| #elif defined(HAVE_PTHREAD_SETSPECIFIC) |
| |
| #include <pthread.h> |
| |
| # define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \ |
| static pthread_once_t tls_ ## name ## _once_control = PTHREAD_ONCE_INIT; \ |
| static pthread_key_t tls_ ## name ## _key; \ |
| \ |
| static void \ |
| tls_ ## name ## _destroy_value (void *value) \ |
| { \ |
| free (value); \ |
| } \ |
| \ |
| static void \ |
| tls_ ## name ## _make_key (void) \ |
| { \ |
| pthread_key_create (&tls_ ## name ## _key, \ |
| tls_ ## name ## _destroy_value); \ |
| } \ |
| \ |
| static type * \ |
| tls_ ## name ## _alloc (void) \ |
| { \ |
| type *value = calloc (1, sizeof (type)); \ |
| if (value) \ |
| pthread_setspecific (tls_ ## name ## _key, value); \ |
| return value; \ |
| } \ |
| \ |
| static force_inline type * \ |
| tls_ ## name ## _get (void) \ |
| { \ |
| type *value = NULL; \ |
| if (pthread_once (&tls_ ## name ## _once_control, \ |
| tls_ ## name ## _make_key) == 0) \ |
| { \ |
| value = pthread_getspecific (tls_ ## name ## _key); \ |
| if (!value) \ |
| value = tls_ ## name ## _alloc (); \ |
| } \ |
| return value; \ |
| } |
| |
| # define PIXMAN_GET_THREAD_LOCAL(name) \ |
| tls_ ## name ## _get () |
| |
| #else |
| |
| # 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." |
| |
| #endif |