apps/codecs/libwmapro/libavutil/internal.h

   1 /*
   2  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
   3  *
   4  * This file is part of FFmpeg.
   5  *
   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.
  10  *
  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.
  15  *
  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
  19  */
  20
  21 /**
  22  * @file libavutil/internal.h
  23  * common internal API header
  24  */
  25
  26 #ifndef AVUTIL_INTERNAL_H
  27 #define AVUTIL_INTERNAL_H
  28
  29 #if !defined(DEBUG) && !defined(NDEBUG)
  30 #    define NDEBUG
  31 #endif
  32
  33 #include <limits.h>
  34 #include <stdint.h>
  35 #include <stddef.h>
  36 //#include <assert.h>
  37 //#include "config.h"
  38 #include "attributes.h"
  39 //#include "timer.h"
  40
  41 #ifndef attribute_align_arg
  42 #if (!defined(__ICC) || __ICC > 1110) && AV_GCC_VERSION_AT_LEAST(4,2)
  43 #    define attribute_align_arg __attribute__((force_align_arg_pointer))
  44 #else
  45 #    define attribute_align_arg
  46 #endif
  47 #endif
  48
  49 #ifndef attribute_used
  50 #if AV_GCC_VERSION_AT_LEAST(3,1)
  51 #    define attribute_used __attribute__((used))
  52 #else
  53 #    define attribute_used
  54 #endif
  55 #endif
  56
  57 #ifndef av_alias
  58 #if HAVE_ATTRIBUTE_MAY_ALIAS && (!defined(__ICC) || __ICC > 1110) && AV_GCC_VERSION_AT_LEAST(3,3)
  59 #   define av_alias __attribute__((may_alias))
  60 #else
  61 #   define av_alias
  62 #endif
  63 #endif
  64
  65 #ifndef INT16_MIN
  66 #define INT16_MIN       (-0x7fff - 1)
  67 #endif
  68
  69 #ifndef INT16_MAX
  70 #define INT16_MAX       0x7fff
  71 #endif
  72
  73 #ifndef INT32_MIN
  74 #define INT32_MIN       (-0x7fffffff - 1)
  75 #endif
  76
  77 #ifndef INT32_MAX
  78 #define INT32_MAX       0x7fffffff
  79 #endif
  80
  81 #ifndef UINT32_MAX
  82 #define UINT32_MAX      0xffffffff
  83 #endif
  84
  85 #ifndef INT64_MIN
  86 #define INT64_MIN       (-0x7fffffffffffffffLL - 1)
  87 #endif
  88
  89 #ifndef INT64_MAX
  90 #define INT64_MAX INT64_C(9223372036854775807)
  91 #endif
  92
  93 #ifndef UINT64_MAX
  94 #define UINT64_MAX UINT64_C(0xFFFFFFFFFFFFFFFF)
  95 #endif
  96
  97 #ifndef INT_BIT
  98 #    define INT_BIT (CHAR_BIT * sizeof(int))
  99 #endif
 100
 101 #ifndef offsetof
 102 #    define offsetof(T, F) ((unsigned int)((char *)&((T *)0)->F))
 103 #endif
 104
 105 /* Use to export labels from asm. */
 106 #define LABEL_MANGLE(a) EXTERN_PREFIX #a
 107
 108 // Use rip-relative addressing if compiling PIC code on x86-64.
 109 #if ARCH_X86_64 && defined(PIC)
 110 #    define LOCAL_MANGLE(a) #a "(%%rip)"
 111 #else
 112 #    define LOCAL_MANGLE(a) #a
 113 #endif
 114
 115 #define MANGLE(a) EXTERN_PREFIX LOCAL_MANGLE(a)
 116
 117 /* debug stuff */
 118
 119 /* dprintf macros */
 120 #ifdef DEBUG
 121 #    define dprintf(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__)
 122 #else
 123 #    define dprintf(pctx, ...)
 124 #endif
 125
 126 #define av_abort()      do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
 127
 128 /* math */
 129
 130 #if ARCH_X86
 131 #define MASK_ABS(mask, level)\
 132             __asm__ volatile(\
 133                 "cltd                   \n\t"\
 134                 "xorl %1, %0            \n\t"\
 135                 "subl %1, %0            \n\t"\
 136                 : "+a" (level), "=&d" (mask)\
 137             );
 138 #else
 139 #define MASK_ABS(mask, level)\
 140             mask  = level >> 31;\
 141             level = (level ^ mask) - mask;
 142 #endif
 143
 144 /* avoid usage of dangerous/inappropriate system functions */
 145 //#undef  malloc
 146 //#define malloc please_use_av_malloc
 147 #undef  free
 148 #define free please_use_av_free
 149 #undef  realloc
 150 #define realloc please_use_av_realloc
 151 #undef  time
 152 #define time time_is_forbidden_due_to_security_issues
 153 #undef  rand
 154 #define rand rand_is_forbidden_due_to_state_trashing_use_av_lfg_get
 155 #undef  srand
 156 #define srand srand_is_forbidden_due_to_state_trashing_use_av_lfg_init
 157 #undef  random
 158 #define random random_is_forbidden_due_to_state_trashing_use_av_lfg_get
 159 #undef  sprintf
 160 #define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
 161 #undef  strcat
 162 #define strcat strcat_is_forbidden_due_to_security_issues_use_av_strlcat
 163 #undef  exit
 164 #define exit exit_is_forbidden
 165 #ifndef LIBAVFORMAT_BUILD
 166 //#undef  printf
 167 //#define printf please_use_av_log_instead_of_printf
 168 #undef  fprintf
 169 #define fprintf please_use_av_log_instead_of_fprintf
 170 #undef  puts
 171 #define puts please_use_av_log_instead_of_puts
 172 #undef  perror
 173 #define perror please_use_av_log_instead_of_perror
 174 #endif
 175
 176 #define FF_ALLOC_OR_GOTO(ctx, p, size, label)\
 177 {\
 178     p = av_malloc(size);\
 179     if (p == NULL && (size) != 0) {\
 180         av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
 181         goto label;\
 182     }\
 183 }
 184
 185 #define FF_ALLOCZ_OR_GOTO(ctx, p, size, label)\
 186 {\
 187     p = av_mallocz(size);\
 188     if (p == NULL && (size) != 0) {\
 189         av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
 190         goto label;\
 191     }\
 192 }
 193
 194 //#include "libm.h"
 195
 196 /**
 197  * Returns NULL if CONFIG_SMALL is true, otherwise the argument
 198  * without modification. Used to disable the definition of strings
 199  * (for example AVCodec long_names).
 200  */
 201 #if CONFIG_SMALL
 202 #   define NULL_IF_CONFIG_SMALL(x) NULL
 203 #else
 204 #   define NULL_IF_CONFIG_SMALL(x) x
 205 #endif
 206
 207 #endif /* AVUTIL_INTERNAL_H */