103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/*
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* Copyright © 2018, VideoLAN and dav1d authors
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* Copyright © 2018, Two Orioles, LLC
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef DAV1D_SRC_MEM_H
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#define DAV1D_SRC_MEM_H
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#include <stdlib.h>
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#if defined(HAVE_ALIGNED_MALLOC) || defined(HAVE_MEMALIGN)
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#include <malloc.h>
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#endif
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#include "common/attributes.h"
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#include "src/thread.h"
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typedef struct Dav1dMemPoolBuffer {
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void *data;
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struct Dav1dMemPoolBuffer *next;
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} Dav1dMemPoolBuffer;
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typedef struct Dav1dMemPool {
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pthread_mutex_t lock;
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Dav1dMemPoolBuffer *buf;
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int ref_cnt;
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int end;
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} Dav1dMemPool;
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void dav1d_mem_pool_push(Dav1dMemPool *pool, Dav1dMemPoolBuffer *buf);
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Dav1dMemPoolBuffer *dav1d_mem_pool_pop(Dav1dMemPool *pool, size_t size);
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int dav1d_mem_pool_init(Dav1dMemPool **pool);
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void dav1d_mem_pool_end(Dav1dMemPool *pool);
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/*
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* Allocate align-byte aligned memory. The return value can be released
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* by calling the dav1d_free_aligned() function.
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*/
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static inline void *dav1d_alloc_aligned(size_t sz, size_t align) {
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assert(!(align & (align - 1)));
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#ifdef HAVE_POSIX_MEMALIGN
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void *ptr;
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if (posix_memalign(&ptr, align, sz)) return NULL;
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return ptr;
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#elif defined(HAVE_ALIGNED_MALLOC)
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return _aligned_malloc(sz, align);
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#elif defined(HAVE_MEMALIGN)
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return memalign(align, sz);
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#else
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#error Missing aligned alloc implementation
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#endif
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}
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static inline void dav1d_free_aligned(void* ptr) {
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#ifdef HAVE_POSIX_MEMALIGN
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free(ptr);
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#elif defined(HAVE_ALIGNED_MALLOC)
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_aligned_free(ptr);
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#elif defined(HAVE_MEMALIGN)
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free(ptr);
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#endif
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}
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static inline void dav1d_freep_aligned(void* ptr) {
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void **mem = (void **) ptr;
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if (*mem) {
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dav1d_free_aligned(*mem);
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*mem = NULL;
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}
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}
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static inline void freep(void *ptr) {
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void **mem = (void **) ptr;
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if (*mem) {
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free(*mem);
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*mem = NULL;
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}
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}
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#endif /* DAV1D_SRC_MEM_H */
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