diff options
Diffstat (limited to 'pixman/pixman/pixman-compiler.h')
-rw-r--r-- | pixman/pixman/pixman-compiler.h | 406 |
1 files changed, 210 insertions, 196 deletions
diff --git a/pixman/pixman/pixman-compiler.h b/pixman/pixman/pixman-compiler.h index c47306691..484ef4477 100644 --- a/pixman/pixman/pixman-compiler.h +++ b/pixman/pixman/pixman-compiler.h @@ -1,196 +1,210 @@ -/* 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 -#elif defined __GNUC__ || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)) -# define inline __inline__ -# define force_inline __inline__ __attribute__ ((__always_inline__)) -#else -# ifndef force_inline -# define force_inline inline -# endif -#endif - -/* GCC visibility */ -#if defined(__GNUC__) && __GNUC__ >= 4 -# 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(TOOLCHAIN_SUPPORTS__THREAD) - -# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \ - static __thread type name -# define PIXMAN_GET_THREAD_LOCAL(name) \ - (&name) - -#elif defined(__MINGW32__) && !defined(__WIN64) - -/* We can't include <windows.h> as it causes carious clashes with - * identifiers in pixman, sigh. So just declare the functions we need - * here. - */ -extern long __stdcall InterlockedCompareExchange(long volatile *, long, long); -#define InterlockedCompareExchangePointer(d,e,c) \ - (void *)InterlockedCompareExchange((long volatile *)(d),(long)(e),(long)(c)) -extern int __stdcall TlsAlloc (void); -extern void * __stdcall TlsGetValue (unsigned); -extern int __stdcall TlsSetValue (unsigned, void *); -extern void * __stdcall CreateMutexA(void *, int, char *); -extern int __stdcall CloseHandle(void *); -extern unsigned __stdcall WaitForSingleObject (void *, unsigned); -extern int __stdcall ReleaseMutex (void *); - -# 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 ## _make_key (void) \ - { \ - pthread_key_create (&tls_ ## name ## _key, NULL); \ - } \ - \ - 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" - -#endif +/* 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
+#elif defined __GNUC__ || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
+# define inline __inline__
+# define force_inline __inline__ __attribute__ ((__always_inline__))
+#else
+# ifndef force_inline
+# define force_inline inline
+# endif
+#endif
+
+/* GCC visibility */
+#if defined(__GNUC__) && __GNUC__ >= 4
+# 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__) && !defined(__WIN64)
+
+/* We can't include <windows.h> as it causes carious clashes with
+ * identifiers in pixman, sigh. So just declare the functions we need
+ * here.
+ */
+extern long __stdcall InterlockedCompareExchange(long volatile *, long, long);
+#define InterlockedCompareExchangePointer(d,e,c) \
+ (void *)InterlockedCompareExchange((long volatile *)(d),(long)(e),(long)(c))
+extern int __stdcall TlsAlloc (void);
+extern void * __stdcall TlsGetValue (unsigned);
+extern int __stdcall TlsSetValue (unsigned, void *);
+extern void * __stdcall CreateMutexA(void *, int, char *);
+extern int __stdcall CloseHandle(void *);
+extern unsigned __stdcall WaitForSingleObject (void *, unsigned);
+extern int __stdcall ReleaseMutex (void *);
+
+# 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
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