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.
29 #ifndef attribute_used
30 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
31 # define attribute_used __attribute__((used))
33 # define attribute_used
38 #define M_PI 3.14159265358979323846
42 #define INT16_MIN (-0x7fff-1)
46 #define INT16_MAX 0x7fff
50 #define INT32_MIN (-0x7fffffff-1)
54 #define INT32_MAX 0x7fffffff
58 #define UINT32_MAX 0xffffffff
62 #define INT64_MIN (-0x7fffffffffffffffLL-1)
66 #define INT64_MAX INT64_C(9223372036854775807)
70 #define UINT64_MAX UINT64_C(0xFFFFFFFFFFFFFFFF)
74 # if INT_MAX != 2147483647
81 #if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
85 #include "intreadwrite.h"
90 # define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
98 # define snprintf _snprintf
99 # define vsnprintf _vsnprintf
101 /* __MINGW32__ end */
102 #elif defined (CONFIG_OS2)
107 #endif /* !__MINGW32__ && CONFIG_OS2 */
109 #ifdef USE_FASTMEMCPY
110 # include "libvo/fastmemcpy.h"
111 # define memcpy(a,b,c) fast_memcpy(a,b,c)
114 // Use rip-relative addressing if compiling PIC code on x86-64.
115 #if defined(__MINGW32__) || defined(__CYGWIN__) || \
116 defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__))
117 # if defined(ARCH_X86_64) && defined(PIC)
118 # define MANGLE(a) "_" #a"(%%rip)"
120 # define MANGLE(a) "_" #a
123 # if defined(ARCH_X86_64) && defined(PIC)
124 # define MANGLE(a) #a"(%%rip)"
125 # elif defined(CONFIG_DARWIN)
126 # define MANGLE(a) "_" #a
128 # define MANGLE(a) #a
134 #if !defined(DEBUG) && !defined(NDEBUG)
141 # define dprintf(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__)
143 # define dprintf(pctx, ...)
146 #define av_abort() do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
150 extern const uint32_t ff_inverse[256];
152 #if defined(ARCH_X86)
153 # define FASTDIV(a,b) \
158 :"=d"(ret),"=a"(dmy)\
159 :"1"(a),"g"(ff_inverse[b])\
163 #elif defined(ARCH_ARMV4L)
164 # define FASTDIV(a,b) \
168 "umull %1, %0, %2, %3"\
169 :"=&r"(ret),"=&r"(dmy)\
170 :"r"(a),"r"(ff_inverse[b])\
174 #elif defined(CONFIG_FASTDIV)
175 # define FASTDIV(a,b) ((uint32_t)((((uint64_t)a)*ff_inverse[b])>>32))
177 # define FASTDIV(a,b) ((a)/(b))
180 extern const uint8_t ff_sqrt_tab[128];
182 static inline int ff_sqrt(int a)
187 if(a<128) return ff_sqrt_tab[a];
189 for(s=30; s>=0; s-=2){
200 #if defined(ARCH_X86)
201 #define MASK_ABS(mask, level)\
206 : "+a" (level), "=&d" (mask)\
209 #define MASK_ABS(mask, level)\
211 level= (level^mask)-mask;
215 #define COPY3_IF_LT(x,y,a,b,c,d)\
221 : "+&r" (x), "+&r" (a), "+r" (c)\
222 : "r" (y), "r" (b), "r" (d)\
225 #define COPY3_IF_LT(x,y,a,b,c,d)\
233 /* avoid usage of various functions */
234 #define malloc please_use_av_malloc
235 #define free please_use_av_free
236 #define realloc please_use_av_realloc
237 #define time time_is_forbidden_due_to_security_issues
238 #define rand rand_is_forbidden_due_to_state_trashing
239 #define srand srand_is_forbidden_due_to_state_trashing
240 #define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
241 #define strcat strcat_is_forbidden_due_to_security_issues_use_pstrcat
242 #define exit exit_is_forbidden
243 #if !(defined(LIBAVFORMAT_BUILD) || defined(_FRAMEHOOK_H))
244 #define printf please_use_av_log
245 #define fprintf please_use_av_log
248 #define CHECKED_ALLOCZ(p, size)\
250 p= av_mallocz(size);\
251 if(p==NULL && (size)!=0){\
258 /* XXX: add ISOC specific test to avoid specific BSD testing. */
259 /* better than nothing implementation. */
260 /* btw, rintf() is existing on fbsd too -- alex */
261 static av_always_inline long int lrintf(float x)
268 : "=m" (i) : "t" (x) : "st"
272 /* XXX: incorrect, but make it compile */
273 return (int)(x + (x < 0 ? -0.5 : 0.5));
274 # endif /* ARCH_X86_32 */
276 return (int)(rint(x));
277 #endif /* __MINGW32__ */
279 #endif /* HAVE_LRINTF */
281 #endif /* INTERNAL_H */