michael@0: /* Copyright (C) 2007 Jean-Marc Valin
michael@0: 
michael@0:    File: os_support.h
michael@0:    This is the (tiny) OS abstraction layer. Aside from math.h, this is the
michael@0:    only place where system headers are allowed.
michael@0: 
michael@0:    Redistribution and use in source and binary forms, with or without
michael@0:    modification, are permitted provided that the following conditions are
michael@0:    met:
michael@0: 
michael@0:    1. Redistributions of source code must retain the above copyright notice,
michael@0:    this list of conditions and the following disclaimer.
michael@0: 
michael@0:    2. Redistributions in binary form must reproduce the above copyright
michael@0:    notice, this list of conditions and the following disclaimer in the
michael@0:    documentation and/or other materials provided with the distribution.
michael@0: 
michael@0:    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
michael@0:    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
michael@0:    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
michael@0:    DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
michael@0:    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
michael@0:    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
michael@0:    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
michael@0:    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
michael@0:    STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
michael@0:    ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
michael@0:    POSSIBILITY OF SUCH DAMAGE.
michael@0: */
michael@0: 
michael@0: #ifndef OS_SUPPORT_H
michael@0: #define OS_SUPPORT_H
michael@0: 
michael@0: #ifdef CUSTOM_SUPPORT
michael@0: #  include "custom_support.h"
michael@0: #endif
michael@0: 
michael@0: #include "opus_types.h"
michael@0: #include "opus_defines.h"
michael@0: 
michael@0: #include <string.h>
michael@0: #include <stdio.h>
michael@0: #include <stdlib.h>
michael@0: 
michael@0: /** Opus wrapper for malloc(). To do your own dynamic allocation, all you need to do is replace this function and opus_free */
michael@0: #ifndef OVERRIDE_OPUS_ALLOC
michael@0: static OPUS_INLINE void *opus_alloc (size_t size)
michael@0: {
michael@0:    return malloc(size);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: /** Same as celt_alloc(), except that the area is only needed inside a CELT call (might cause problem with wideband though) */
michael@0: #ifndef OVERRIDE_OPUS_ALLOC_SCRATCH
michael@0: static OPUS_INLINE void *opus_alloc_scratch (size_t size)
michael@0: {
michael@0:    /* Scratch space doesn't need to be cleared */
michael@0:    return opus_alloc(size);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: /** Opus wrapper for free(). To do your own dynamic allocation, all you need to do is replace this function and opus_alloc */
michael@0: #ifndef OVERRIDE_OPUS_FREE
michael@0: static OPUS_INLINE void opus_free (void *ptr)
michael@0: {
michael@0:    free(ptr);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: /** Copy n bytes of memory from src to dst. The 0* term provides compile-time type checking  */
michael@0: #ifndef OVERRIDE_OPUS_COPY
michael@0: #define OPUS_COPY(dst, src, n) (memcpy((dst), (src), (n)*sizeof(*(dst)) + 0*((dst)-(src)) ))
michael@0: #endif
michael@0: 
michael@0: /** Copy n bytes of memory from src to dst, allowing overlapping regions. The 0* term
michael@0:     provides compile-time type checking */
michael@0: #ifndef OVERRIDE_OPUS_MOVE
michael@0: #define OPUS_MOVE(dst, src, n) (memmove((dst), (src), (n)*sizeof(*(dst)) + 0*((dst)-(src)) ))
michael@0: #endif
michael@0: 
michael@0: /** Set n elements of dst to zero, starting at address s */
michael@0: #ifndef OVERRIDE_OPUS_CLEAR
michael@0: #define OPUS_CLEAR(dst, n) (memset((dst), 0, (n)*sizeof(*(dst))))
michael@0: #endif
michael@0: 
michael@0: /*#ifdef __GNUC__
michael@0: #pragma GCC poison printf sprintf
michael@0: #pragma GCC poison malloc free realloc calloc
michael@0: #endif*/
michael@0: 
michael@0: #endif /* OS_SUPPORT_H */
michael@0: