Line data    Source code

       1             : /* Copyright (C) 2007 Jean-Marc Valin
       2             : 
       3             :    File: os_support.h
       4             :    This is the (tiny) OS abstraction layer. Aside from math.h, this is the
       5             :    only place where system headers are allowed.
       6             : 
       7             :    Redistribution and use in source and binary forms, with or without
       8             :    modification, are permitted provided that the following conditions are
       9             :    met:
      10             : 
      11             :    1. Redistributions of source code must retain the above copyright notice,
      12             :    this list of conditions and the following disclaimer.
      13             : 
      14             :    2. Redistributions in binary form must reproduce the above copyright
      15             :    notice, this list of conditions and the following disclaimer in the
      16             :    documentation and/or other materials provided with the distribution.
      17             : 
      18             :    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
      19             :    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
      20             :    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
      21             :    DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
      22             :    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
      23             :    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
      24             :    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      25             :    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
      26             :    STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
      27             :    ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
      28             :    POSSIBILITY OF SUCH DAMAGE.
      29             : */
      30             : 
      31             : #ifndef OS_SUPPORT_H
      32             : #define OS_SUPPORT_H
      33             : 
      34             : #ifdef CUSTOM_SUPPORT
      35             : #  include "custom_support.h"
      36             : #endif
      37             : 
      38             : #include "opus_types.h"
      39             : #include "opus_defines.h"
      40             : 
      41             : #include <string.h>
      42             : #include <stdio.h>
      43             : #include <stdlib.h>
      44             : 
      45             : /** Opus wrapper for malloc(). To do your own dynamic allocation, all you need to do is replace this function and opus_free */
      46             : #ifndef OVERRIDE_OPUS_ALLOC
      47           0 : static OPUS_INLINE void *opus_alloc (size_t size)
      48             : {
      49           0 :    return malloc(size);
      50             : }
      51             : #endif
      52             : 
      53             : /** Same as celt_alloc(), except that the area is only needed inside a CELT call (might cause problem with wideband though) */
      54             : #ifndef OVERRIDE_OPUS_ALLOC_SCRATCH
      55             : static OPUS_INLINE void *opus_alloc_scratch (size_t size)
      56             : {
      57             :    /* Scratch space doesn't need to be cleared */
      58             :    return opus_alloc(size);
      59             : }
      60             : #endif
      61             : 
      62             : /** Opus wrapper for free(). To do your own dynamic allocation, all you need to do is replace this function and opus_alloc */
      63             : #ifndef OVERRIDE_OPUS_FREE
      64           0 : static OPUS_INLINE void opus_free (void *ptr)
      65             : {
      66           0 :    free(ptr);
      67           0 : }
      68             : #endif
      69             : 
      70             : /** Copy n elements from src to dst. The 0* term provides compile-time type checking  */
      71             : #ifndef OVERRIDE_OPUS_COPY
      72             : #define OPUS_COPY(dst, src, n) (memcpy((dst), (src), (n)*sizeof(*(dst)) + 0*((dst)-(src)) ))
      73             : #endif
      74             : 
      75             : /** Copy n elements from src to dst, allowing overlapping regions. The 0* term
      76             :     provides compile-time type checking */
      77             : #ifndef OVERRIDE_OPUS_MOVE
      78             : #define OPUS_MOVE(dst, src, n) (memmove((dst), (src), (n)*sizeof(*(dst)) + 0*((dst)-(src)) ))
      79             : #endif
      80             : 
      81             : /** Set n elements of dst to zero */
      82             : #ifndef OVERRIDE_OPUS_CLEAR
      83             : #define OPUS_CLEAR(dst, n) (memset((dst), 0, (n)*sizeof(*(dst))))
      84             : #endif
      85             : 
      86             : /*#ifdef __GNUC__
      87             : #pragma GCC poison printf sprintf
      88             : #pragma GCC poison malloc free realloc calloc
      89             : #endif*/
      90             : 
      91             : #endif /* OS_SUPPORT_H */
      92             :