mpcommon.h

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #ifndef MPLAYER_MPCOMMON_H
  20 #define MPLAYER_MPCOMMON_H
  21
  22 // both int64_t and double should be able to represent this exactly
  23 #define MP_NOPTS_VALUE (-1LL<<63)
  24
  25 #define ROUND(x) ((int)((x) < 0 ? (x) - 0.5 : (x) + 0.5))
  26
  27 #define MP_TALLOC_ELEMS(p) (talloc_get_size(p) / sizeof((p)[0]))
  28 #define MP_GROW_ARRAY(p, nextidx) do {          \
  29     if ((nextidx) == MP_TALLOC_ELEMS(p))        \
  30         p = talloc_realloc_size(NULL, p, talloc_get_size(p) * 2); } while (0)
  31 #define MP_RESIZE_ARRAY(ctx, p, count) do {     \
  32         p = talloc_realloc_size((ctx), p, (count) * sizeof(p[0])); } while (0)
  33
  34 #ifdef __GNUC__
  35
  36 /** Use gcc attribute to check printf fns.  a1 is the 1-based index of
  37  * the parameter containing the format, and a2 the index of the first
  38  * argument. **/
  39 #ifdef __MINGW32__
  40 // MinGW maps "printf" to the non-standard MSVCRT functions, even if
  41 // __USE_MINGW_ANSI_STDIO is defined and set to 1. We need to use "gnu_printf",
  42 // which isn't necessarily available on other GCC compatible compilers.
  43 #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (gnu_printf, a1, a2)))
  44 #else
  45 #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (printf, a1, a2)))
  46 #endif
  47
  48 #else
  49
  50 #define PRINTF_ATTRIBUTE(a1, a2)
  51
  52 #endif
  53
  54 extern const char *mplayer_version;
  55
  56 #endif /* MPLAYER_MPCOMMON_H */