cannam@154: /* Copyright (C) 2007 Jean-Marc Valin
cannam@154: 
cannam@154:    File: os_support.h
cannam@154:    This is the (tiny) OS abstraction layer. Aside from math.h, this is the
cannam@154:    only place where system headers are allowed.
cannam@154: 
cannam@154:    Redistribution and use in source and binary forms, with or without
cannam@154:    modification, are permitted provided that the following conditions are
cannam@154:    met:
cannam@154: 
cannam@154:    1. Redistributions of source code must retain the above copyright notice,
cannam@154:    this list of conditions and the following disclaimer.
cannam@154: 
cannam@154:    2. Redistributions in binary form must reproduce the above copyright
cannam@154:    notice, this list of conditions and the following disclaimer in the
cannam@154:    documentation and/or other materials provided with the distribution.
cannam@154: 
cannam@154:    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
cannam@154:    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
cannam@154:    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
cannam@154:    DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
cannam@154:    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
cannam@154:    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
cannam@154:    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
cannam@154:    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
cannam@154:    STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
cannam@154:    ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
cannam@154:    POSSIBILITY OF SUCH DAMAGE.
cannam@154: */
cannam@154: 
cannam@154: #ifndef OS_SUPPORT_H
cannam@154: #define OS_SUPPORT_H
cannam@154: 
cannam@154: #ifdef CUSTOM_SUPPORT
cannam@154: #  include "custom_support.h"
cannam@154: #endif
cannam@154: 
cannam@154: #include "opus_types.h"
cannam@154: #include "opus_defines.h"
cannam@154: 
cannam@154: #include <string.h>
cannam@154: #include <stdio.h>
cannam@154: #include <stdlib.h>
cannam@154: 
cannam@154: /** Opus wrapper for malloc(). To do your own dynamic allocation, all you need to do is replace this function and opus_free */
cannam@154: #ifndef OVERRIDE_OPUS_ALLOC
cannam@154: static OPUS_INLINE void *opus_alloc (size_t size)
cannam@154: {
cannam@154:    return malloc(size);
cannam@154: }
cannam@154: #endif
cannam@154: 
cannam@154: /** Same as celt_alloc(), except that the area is only needed inside a CELT call (might cause problem with wideband though) */
cannam@154: #ifndef OVERRIDE_OPUS_ALLOC_SCRATCH
cannam@154: static OPUS_INLINE void *opus_alloc_scratch (size_t size)
cannam@154: {
cannam@154:    /* Scratch space doesn't need to be cleared */
cannam@154:    return opus_alloc(size);
cannam@154: }
cannam@154: #endif
cannam@154: 
cannam@154: /** Opus wrapper for free(). To do your own dynamic allocation, all you need to do is replace this function and opus_alloc */
cannam@154: #ifndef OVERRIDE_OPUS_FREE
cannam@154: static OPUS_INLINE void opus_free (void *ptr)
cannam@154: {
cannam@154:    free(ptr);
cannam@154: }
cannam@154: #endif
cannam@154: 
cannam@154: /** Copy n elements from src to dst. The 0* term provides compile-time type checking  */
cannam@154: #ifndef OVERRIDE_OPUS_COPY
cannam@154: #define OPUS_COPY(dst, src, n) (memcpy((dst), (src), (n)*sizeof(*(dst)) + 0*((dst)-(src)) ))
cannam@154: #endif
cannam@154: 
cannam@154: /** Copy n elements from src to dst, allowing overlapping regions. The 0* term
cannam@154:     provides compile-time type checking */
cannam@154: #ifndef OVERRIDE_OPUS_MOVE
cannam@154: #define OPUS_MOVE(dst, src, n) (memmove((dst), (src), (n)*sizeof(*(dst)) + 0*((dst)-(src)) ))
cannam@154: #endif
cannam@154: 
cannam@154: /** Set n elements of dst to zero */
cannam@154: #ifndef OVERRIDE_OPUS_CLEAR
cannam@154: #define OPUS_CLEAR(dst, n) (memset((dst), 0, (n)*sizeof(*(dst))))
cannam@154: #endif
cannam@154: 
cannam@154: /*#ifdef __GNUC__
cannam@154: #pragma GCC poison printf sprintf
cannam@154: #pragma GCC poison malloc free realloc calloc
cannam@154: #endif*/
cannam@154: 
cannam@154: #endif /* OS_SUPPORT_H */
cannam@154: