diff options
Diffstat (limited to 'third_party/aom/aom_mem/aom_mem.c')
-rw-r--r-- | third_party/aom/aom_mem/aom_mem.c | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/third_party/aom/aom_mem/aom_mem.c b/third_party/aom/aom_mem/aom_mem.c deleted file mode 100644 index e603fc5bf..000000000 --- a/third_party/aom/aom_mem/aom_mem.c +++ /dev/null @@ -1,84 +0,0 @@ -/* - * Copyright (c) 2016, Alliance for Open Media. All rights reserved - * - * This source code is subject to the terms of the BSD 2 Clause License and - * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License - * was not distributed with this source code in the LICENSE file, you can - * obtain it at www.aomedia.org/license/software. If the Alliance for Open - * Media Patent License 1.0 was not distributed with this source code in the - * PATENTS file, you can obtain it at www.aomedia.org/license/patent. - */ - -#include "aom_mem.h" -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include "include/aom_mem_intrnl.h" -#include "aom/aom_integer.h" - -#if defined(AOM_MAX_ALLOCABLE_MEMORY) -// Returns 0 in case of overflow of nmemb * size. -static int check_size_argument_overflow(uint64_t nmemb, uint64_t size) { - const uint64_t total_size = nmemb * size; - if (nmemb == 0) return 1; - if (size > AOM_MAX_ALLOCABLE_MEMORY / nmemb) return 0; - if (total_size != (size_t)total_size) return 0; - return 1; -} -#endif - -static size_t GetAlignedMallocSize(size_t size, size_t align) { - return size + align - 1 + ADDRESS_STORAGE_SIZE; -} - -static size_t *GetMallocAddressLocation(void *const mem) { - return ((size_t *)mem) - 1; -} - -static void SetActualMallocAddress(void *const mem, - const void *const malloc_addr) { - size_t *const malloc_addr_location = GetMallocAddressLocation(mem); - *malloc_addr_location = (size_t)malloc_addr; -} - -static void *GetActualMallocAddress(void *const mem) { - const size_t *const malloc_addr_location = GetMallocAddressLocation(mem); - return (void *)(*malloc_addr_location); -} - -void *aom_memalign(size_t align, size_t size) { - void *x = NULL; - const size_t aligned_size = GetAlignedMallocSize(size, align); -#if defined(AOM_MAX_ALLOCABLE_MEMORY) - if (!check_size_argument_overflow(1, aligned_size)) return NULL; -#endif - void *const addr = malloc(aligned_size); - if (addr) { - x = align_addr((unsigned char *)addr + ADDRESS_STORAGE_SIZE, align); - SetActualMallocAddress(x, addr); - } - return x; -} - -void *aom_malloc(size_t size) { return aom_memalign(DEFAULT_ALIGNMENT, size); } - -void *aom_calloc(size_t num, size_t size) { - const size_t total_size = num * size; - void *const x = aom_malloc(total_size); - if (x) memset(x, 0, total_size); - return x; -} - -void aom_free(void *memblk) { - if (memblk) { - void *addr = GetActualMallocAddress(memblk); - free(addr); - } -} - -void *aom_memset16(void *dest, int val, size_t length) { - size_t i; - uint16_t *dest16 = (uint16_t *)dest; - for (i = 0; i < length; i++) *dest16++ = val; - return dest; -} |