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/*
* 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_SRC_MEM_H
#define DAV1D_SRC_MEM_H
#include <stdlib.h>
#if defined(HAVE_ALIGNED_MALLOC) || defined(HAVE_MEMALIGN)
#include <malloc.h>
#endif
#include "common/attributes.h"
#include "src/thread.h"
typedef struct Dav1dMemPoolBuffer {
void *data;
struct Dav1dMemPoolBuffer *next;
} Dav1dMemPoolBuffer;
typedef struct Dav1dMemPool {
pthread_mutex_t lock;
Dav1dMemPoolBuffer *buf;
int ref_cnt;
int end;
} Dav1dMemPool;
void dav1d_mem_pool_push(Dav1dMemPool *pool, Dav1dMemPoolBuffer *buf);
Dav1dMemPoolBuffer *dav1d_mem_pool_pop(Dav1dMemPool *pool, size_t size);
int dav1d_mem_pool_init(Dav1dMemPool **pool);
void dav1d_mem_pool_end(Dav1dMemPool *pool);
/*
* Allocate align-byte aligned memory. The return value can be released
* by calling the dav1d_free_aligned() function.
*/
static inline void *dav1d_alloc_aligned(size_t sz, size_t align) {
assert(!(align & (align - 1)));
#ifdef HAVE_POSIX_MEMALIGN
void *ptr;
if (posix_memalign(&ptr, align, sz)) return NULL;
return ptr;
#elif defined(HAVE_ALIGNED_MALLOC)
return _aligned_malloc(sz, align);
#elif defined(HAVE_MEMALIGN)
return memalign(align, sz);
#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);
#elif defined(HAVE_MEMALIGN)
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_SRC_MEM_H */
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