ref: 67bab2ba199ad42e6d18aac1198ec059489d3c20
dir: /include/common/mem.h/
/* * Copyright © 2018, VideoLAN and dav1d authors * Copyright © 2018, Two Orioles, LLC * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef __DAV1D_COMMON_MEM_H__ #define __DAV1D_COMMON_MEM_H__ #include <assert.h> #include <stdlib.h> #ifdef HAVE_ALIGNED_MALLOC #include <malloc.h> #endif /* * Allocate 32-byte aligned memory. The return value can be released * by calling the standard free() function. */ static inline void *dav1d_alloc_aligned(size_t sz, size_t align) { #ifdef HAVE_POSIX_MEMALIGN void *ptr; assert(!(align & (align - 1))); if (posix_memalign(&ptr, align, sz)) return NULL; return ptr; #elif defined(HAVE_ALIGNED_MALLOC) return _aligned_malloc(sz, align); #else #error Missing aligned alloc implementation #endif } static inline void dav1d_free_aligned(void* ptr) { #ifdef HAVE_POSIX_MEMALIGN free(ptr); #elif defined(HAVE_ALIGNED_MALLOC) _aligned_free(ptr); #endif } static inline void dav1d_freep_aligned(void* ptr) { void **mem = (void **) ptr; if (*mem) { dav1d_free_aligned(*mem); *mem = NULL; } } static inline void freep(void *ptr) { void **mem = (void **) ptr; if (*mem) { free(*mem); *mem = NULL; } } #endif /* __DAV1D_COMMON_MEM_H__ */