Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [diff] [blame] | 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 <string.h> |
| 39 | #include <stdio.h> |
| 40 | #include <stdlib.h> |
| 41 | |
| 42 | /** Opus wrapper for malloc(). To do your own dynamic allocation, all you need to do is replace this function and opus_free */ |
| 43 | #ifndef OVERRIDE_OPUS_ALLOC |
| 44 | static inline void *opus_alloc (size_t size) |
| 45 | { |
| 46 | return malloc(size); |
| 47 | } |
| 48 | #endif |
| 49 | |
| 50 | /** Same as celt_alloc(), except that the area is only needed inside a CELT call (might cause problem with wideband though) */ |
| 51 | #ifndef OVERRIDE_OPUS_ALLOC_SCRATCH |
| 52 | static inline void *opus_alloc_scratch (size_t size) |
| 53 | { |
| 54 | /* Scratch space doesn't need to be cleared */ |
| 55 | return opus_alloc(size); |
| 56 | } |
| 57 | #endif |
| 58 | |
| 59 | /** Opus wrapper for free(). To do your own dynamic allocation, all you need to do is replace this function and opus_alloc */ |
| 60 | #ifndef OVERRIDE_OPUS_FREE |
| 61 | static inline void opus_free (void *ptr) |
| 62 | { |
| 63 | free(ptr); |
| 64 | } |
| 65 | #endif |
| 66 | |
| 67 | /** Copy n bytes of memory from src to dst. The 0* term provides compile-time type checking */ |
| 68 | #ifndef OVERRIDE_OPUS_COPY |
| 69 | #define OPUS_COPY(dst, src, n) (memcpy((dst), (src), (n)*sizeof(*(dst)) + 0*((dst)-(src)) )) |
| 70 | #endif |
| 71 | |
| 72 | /** Copy n bytes of memory from src to dst, allowing overlapping regions. The 0* term |
| 73 | provides compile-time type checking */ |
| 74 | #ifndef OVERRIDE_OPUS_MOVE |
| 75 | #define OPUS_MOVE(dst, src, n) (memmove((dst), (src), (n)*sizeof(*(dst)) + 0*((dst)-(src)) )) |
| 76 | #endif |
| 77 | |
| 78 | /** Set n elements of dst to zero, starting at address s */ |
| 79 | #ifndef OVERRIDE_OPUS_CLEAR |
| 80 | #define OPUS_CLEAR(dst, n) (memset((dst), 0, (n)*sizeof(*(dst)))) |
| 81 | #endif |
| 82 | |
| 83 | /*#ifdef __GNUC__ |
| 84 | #pragma GCC poison printf sprintf |
| 85 | #pragma GCC poison malloc free realloc calloc |
| 86 | #endif*/ |
| 87 | |
| 88 | #endif /* OS_SUPPORT_H */ |
| 89 | |