2 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * common internal api header.
32 #ifndef attribute_used
33 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
34 # define attribute_used __attribute__((used))
36 # define attribute_used
41 #define M_PI 3.14159265358979323846
45 #define INT16_MIN (-0x7fff-1)
49 #define INT16_MAX 0x7fff
53 #define INT32_MIN (-0x7fffffff-1)
57 #define INT32_MAX 0x7fffffff
61 #define UINT32_MAX 0xffffffff
65 #define INT64_MIN (-0x7fffffffffffffffLL-1)
69 #define INT64_MAX INT64_C(9223372036854775807)
73 #define UINT64_MAX UINT64_C(0xFFFFFFFFFFFFFFFF)
77 # if INT_MAX != 2147483647
84 #if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
88 #include "intreadwrite.h"
93 # define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
101 # define snprintf _snprintf
102 # define vsnprintf _vsnprintf
104 /* __MINGW32__ end */
105 #elif defined (CONFIG_OS2)
110 #endif /* !__MINGW32__ && CONFIG_OS2 */
112 #ifdef USE_FASTMEMCPY
113 # include "libvo/fastmemcpy.h"
114 # define memcpy(a,b,c) fast_memcpy(a,b,c)
117 // Use rip-relative addressing if compiling PIC code on x86-64.
118 #if defined(__MINGW32__) || defined(__CYGWIN__) || \
119 defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__))
120 # if defined(ARCH_X86_64) && defined(PIC)
121 # define MANGLE(a) "_" #a"(%%rip)"
123 # define MANGLE(a) "_" #a
126 # if defined(ARCH_X86_64) && defined(PIC)
127 # define MANGLE(a) #a"(%%rip)"
128 # elif defined(CONFIG_DARWIN)
129 # define MANGLE(a) "_" #a
131 # define MANGLE(a) #a
137 #if !defined(DEBUG) && !defined(NDEBUG)
144 # define dprintf(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__)
146 # define dprintf(pctx, ...)
149 #define av_abort() do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
153 extern const uint32_t ff_inverse[256];
155 #if defined(ARCH_X86)
156 # define FASTDIV(a,b) \
161 :"=d"(ret),"=a"(dmy)\
162 :"1"(a),"g"(ff_inverse[b])\
166 #elif defined(ARCH_ARMV4L)
167 # define FASTDIV(a,b) \
171 "umull %1, %0, %2, %3"\
172 :"=&r"(ret),"=&r"(dmy)\
173 :"r"(a),"r"(ff_inverse[b])\
177 #elif defined(CONFIG_FASTDIV)
178 # define FASTDIV(a,b) ((uint32_t)((((uint64_t)a)*ff_inverse[b])>>32))
180 # define FASTDIV(a,b) ((a)/(b))
183 extern const uint8_t ff_sqrt_tab[128];
185 static inline int ff_sqrt(int a)
190 if(a<128) return ff_sqrt_tab[a];
192 for(s=30; s>=0; s-=2){
203 #if defined(ARCH_X86)
204 #define MASK_ABS(mask, level)\
209 : "+a" (level), "=&d" (mask)\
212 #define MASK_ABS(mask, level)\
214 level= (level^mask)-mask;
218 #define COPY3_IF_LT(x,y,a,b,c,d)\
224 : "+&r" (x), "+&r" (a), "+r" (c)\
225 : "r" (y), "r" (b), "r" (d)\
228 #define COPY3_IF_LT(x,y,a,b,c,d)\
236 /* avoid usage of various functions */
237 #define malloc please_use_av_malloc
238 #define free please_use_av_free
239 #define realloc please_use_av_realloc
240 #define time time_is_forbidden_due_to_security_issues
241 #define rand rand_is_forbidden_due_to_state_trashing
242 #define srand srand_is_forbidden_due_to_state_trashing
243 #define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
244 #define strcat strcat_is_forbidden_due_to_security_issues_use_av_strlcat
245 #define exit exit_is_forbidden
246 #if !(defined(LIBAVFORMAT_BUILD) || defined(_FRAMEHOOK_H))
247 #define printf please_use_av_log
248 #define fprintf please_use_av_log
251 #define CHECKED_ALLOCZ(p, size)\
253 p= av_mallocz(size);\
254 if(p==NULL && (size)!=0){\
261 /* XXX: add ISOC specific test to avoid specific BSD testing. */
262 /* better than nothing implementation. */
263 /* btw, rintf() is existing on fbsd too -- alex */
264 static av_always_inline long int lrintf(float x)
271 : "=m" (i) : "t" (x) : "st"
275 /* XXX: incorrect, but make it compile */
276 return (int)(x + (x < 0 ? -0.5 : 0.5));
277 # endif /* ARCH_X86_32 */
279 return (int)(rint(x));
280 #endif /* __MINGW32__ */
282 #endif /* HAVE_LRINTF */
284 #endif /* INTERNAL_H */