gfx/cairo/libpixman/src/pixman-compiler.h@6474c204b198
gfx/cairo/libpixman/src/pixman-compiler.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 /* Pixman uses some non-standard compiler features. This file ensures
2 * they exist
3 *
4 * The features are:
5 *
6 * FUNC must be defined to expand to the current function
7 * PIXMAN_EXPORT should be defined to whatever is required to
8 * export functions from a shared library
9 * limits limits for various types must be defined
10 * inline must be defined
11 * force_inline must be defined
12 */
13 #if defined (__GNUC__)
14 # define FUNC ((const char*) (__PRETTY_FUNCTION__))
15 #elif defined (__sun) || (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
16 # define FUNC ((const char*) (__func__))
17 #else
18 # define FUNC ((const char*) ("???"))
19 #endif
21 #if defined (__GNUC__)
22 # define MAYBE_UNUSED __attribute__((unused))
23 #else
24 # define MAYBE_UNUSED
25 #endif
27 #ifndef INT16_MIN
28 # define INT16_MIN (-32767-1)
29 #endif
31 #ifndef INT16_MAX
32 # define INT16_MAX (32767)
33 #endif
35 #ifndef INT32_MIN
36 # define INT32_MIN (-2147483647-1)
37 #endif
39 #ifndef INT32_MAX
40 # define INT32_MAX (2147483647)
41 #endif
43 #ifndef UINT32_MIN
44 # define UINT32_MIN (0)
45 #endif
47 #ifndef UINT32_MAX
48 # define UINT32_MAX (4294967295U)
49 #endif
51 #ifndef INT64_MIN
52 # define INT64_MIN (-9223372036854775807-1)
53 #endif
55 #ifndef INT64_MAX
56 # define INT64_MAX (9223372036854775807)
57 #endif
59 #ifndef SIZE_MAX
60 # define SIZE_MAX ((size_t)-1)
61 #endif
64 #ifndef M_PI
65 # define M_PI 3.14159265358979323846
66 #endif
68 #ifdef _MSC_VER
69 /* 'inline' is available only in C++ in MSVC */
70 # define inline __inline
71 # define force_inline __forceinline
72 # define noinline __declspec(noinline)
73 #elif defined __GNUC__ || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
74 # define inline __inline__
75 # define force_inline __inline__ __attribute__ ((__always_inline__))
76 # define noinline __attribute__((noinline))
77 #else
78 # ifndef force_inline
79 # define force_inline inline
80 # endif
81 # ifndef noinline
82 # define noinline
83 # endif
84 #endif
86 /* In libxul builds we don't ever want to export pixman symbols */
87 #if 1
88 #include "prcpucfg.h"
90 #ifdef HAVE_VISIBILITY_HIDDEN_ATTRIBUTE
91 #define CVISIBILITY_HIDDEN __attribute__((visibility("hidden")))
92 #elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
93 #define CVISIBILITY_HIDDEN __hidden
94 #else
95 #define CVISIBILITY_HIDDEN
96 #endif
98 /* In libxul builds we don't ever want to export cairo symbols */
99 #define PIXMAN_EXPORT extern CVISIBILITY_HIDDEN
101 #else
103 /* GCC visibility */
104 #if defined(__GNUC__) && __GNUC__ >= 4 && !defined(_WIN32)
105 # define PIXMAN_EXPORT __attribute__ ((visibility("default")))
106 /* Sun Studio 8 visibility */
107 #elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
108 # define PIXMAN_EXPORT __global
109 #else
110 # define PIXMAN_EXPORT
111 #endif
113 #endif
115 /* member offsets */
116 #define CONTAINER_OF(type, member, data) \
117 ((type *)(((uint8_t *)data) - offsetof (type, member)))
119 /* TLS */
120 #if defined(PIXMAN_NO_TLS)
122 # define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
123 static type name
124 # define PIXMAN_GET_THREAD_LOCAL(name) \
125 (&name)
127 #elif defined(TLS)
129 # define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
130 static TLS type name
131 # define PIXMAN_GET_THREAD_LOCAL(name) \
132 (&name)
134 #elif defined(__MINGW32__) || defined(PIXMAN_USE_XP_DLL_TLS_WORKAROUND)
136 # define _NO_W32_PSEUDO_MODIFIERS
137 # include <windows.h>
138 #undef IN
139 #undef OUT
141 # define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
142 static volatile int tls_ ## name ## _initialized = 0; \
143 static void *tls_ ## name ## _mutex = NULL; \
144 static unsigned tls_ ## name ## _index; \
145 \
146 static type * \
147 tls_ ## name ## _alloc (void) \
148 { \
149 type *value = calloc (1, sizeof (type)); \
150 if (value) \
151 TlsSetValue (tls_ ## name ## _index, value); \
152 return value; \
153 } \
154 \
155 static force_inline type * \
156 tls_ ## name ## _get (void) \
157 { \
158 type *value; \
159 if (!tls_ ## name ## _initialized) \
160 { \
161 if (!tls_ ## name ## _mutex) \
162 { \
163 void *mutex = CreateMutexA (NULL, 0, NULL); \
164 if (InterlockedCompareExchangePointer ( \
165 &tls_ ## name ## _mutex, mutex, NULL) != NULL) \
166 { \
167 CloseHandle (mutex); \
168 } \
169 } \
170 WaitForSingleObject (tls_ ## name ## _mutex, 0xFFFFFFFF); \
171 if (!tls_ ## name ## _initialized) \
172 { \
173 tls_ ## name ## _index = TlsAlloc (); \
174 tls_ ## name ## _initialized = 1; \
175 } \
176 ReleaseMutex (tls_ ## name ## _mutex); \
177 } \
178 if (tls_ ## name ## _index == 0xFFFFFFFF) \
179 return NULL; \
180 value = TlsGetValue (tls_ ## name ## _index); \
181 if (!value) \
182 value = tls_ ## name ## _alloc (); \
183 return value; \
184 }
186 # define PIXMAN_GET_THREAD_LOCAL(name) \
187 tls_ ## name ## _get ()
189 #elif defined(_MSC_VER)
191 # define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
192 static __declspec(thread) type name
193 # define PIXMAN_GET_THREAD_LOCAL(name) \
194 (&name)
196 #elif defined(HAVE_PTHREAD_SETSPECIFIC)
198 #include <pthread.h>
200 # define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
201 static pthread_once_t tls_ ## name ## _once_control = PTHREAD_ONCE_INIT; \
202 static pthread_key_t tls_ ## name ## _key; \
203 \
204 static void \
205 tls_ ## name ## _destroy_value (void *value) \
206 { \
207 free (value); \
208 } \
209 \
210 static void \
211 tls_ ## name ## _make_key (void) \
212 { \
213 pthread_key_create (&tls_ ## name ## _key, \
214 tls_ ## name ## _destroy_value); \
215 } \
216 \
217 static type * \
218 tls_ ## name ## _alloc (void) \
219 { \
220 type *value = calloc (1, sizeof (type)); \
221 if (value) \
222 pthread_setspecific (tls_ ## name ## _key, value); \
223 return value; \
224 } \
225 \
226 static force_inline type * \
227 tls_ ## name ## _get (void) \
228 { \
229 type *value = NULL; \
230 if (pthread_once (&tls_ ## name ## _once_control, \
231 tls_ ## name ## _make_key) == 0) \
232 { \
233 value = pthread_getspecific (tls_ ## name ## _key); \
234 if (!value) \
235 value = tls_ ## name ## _alloc (); \
236 } \
237 return value; \
238 }
240 # define PIXMAN_GET_THREAD_LOCAL(name) \
241 tls_ ## name ## _get ()
243 #else
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."
247 #endif
