/*
- * The copyright in this software is being made available under the 2-clauses
- * BSD License, included below. This software may be subject to other third
+ * The copyright in this software is being made available under the 2-clauses
+ * BSD License, included below. This software may be subject to other third
* party and contributor rights, including patent rights, and no such rights
* are granted under this license.
*
return NULL;
}
-#if defined(HAVE_POSIX_MEMALIGN)
+#if defined(OPJ_HAVE_POSIX_MEMALIGN)
/* aligned_alloc requires c11, restrict to posix_memalign for now. Quote:
* This function was introduced in POSIX 1003.1d. Although this function is
* superseded by aligned_alloc, it is more portable to older POSIX systems
ptr = NULL;
}
/* older linux */
-#elif defined(HAVE_MEMALIGN)
+#elif defined(OPJ_HAVE_MEMALIGN)
ptr = memalign( alignment, size );
/* _MSC_VER */
-#elif defined(HAVE__ALIGNED_MALLOC)
+#elif defined(OPJ_HAVE__ALIGNED_MALLOC)
ptr = _aligned_malloc(size, alignment);
#else
/*
* Generic aligned malloc implementation.
* Uses size_t offset for the integer manipulation of the pointer,
- * as uintptr_t is not available in C89 to do
+ * as uintptr_t is not available in C89 to do
* bitwise operations on the pointer itself.
*/
alignment--;
/* Room for padding and extra pointer stored in front of allocated area */
size_t overhead = alignment + sizeof(void *);
-
+
/* let's be extra careful */
assert(alignment <= (SIZE_MAX - sizeof(void *)));
}
/* no portable aligned realloc */
-#if defined(HAVE_POSIX_MEMALIGN) || defined(HAVE_MEMALIGN)
- /* glibc doc states one can mixed aligned malloc with realloc */
+#if defined(OPJ_HAVE_POSIX_MEMALIGN) || defined(OPJ_HAVE_MEMALIGN)
+ /* glibc doc states one can mix aligned malloc with realloc */
r_ptr = realloc( ptr, new_size ); /* fast path */
/* we simply use `size_t` to cast, since we are only interest in binary AND
* operator */
r_ptr = a_ptr;
}
/* _MSC_VER */
-#elif defined(HAVE__ALIGNED_MALLOC)
+#elif defined(OPJ_HAVE__ALIGNED_MALLOC)
r_ptr = _aligned_realloc( ptr, new_size, alignment );
#else
if (ptr == NULL) {
if (new_size > SIZE_MAX - overhead) {
return NULL;
}
-
+
oldmem = ((void**) ptr)[-1];
newmem = (OPJ_UINT8*)realloc(oldmem, new_size + overhead);
if (newmem == NULL) {
size_t new_offset;
/* realloc created a new copy, realign the copied memory block */
- old_offset = (size_t)(ptr - oldmem);
+ old_offset = (size_t)((OPJ_UINT8*)ptr - (OPJ_UINT8*)oldmem);
/* offset = ((alignment + 1U) - ((size_t)(mem + sizeof(void*)) & alignment)) & alignment; */
/* Use the fact that alignment + 1U is a power of 2 */
void opj_aligned_free(void* ptr)
{
-#if defined(HAVE_POSIX_MEMALIGN) || defined(HAVE_MEMALIGN)
+#if defined(OPJ_HAVE_POSIX_MEMALIGN) || defined(OPJ_HAVE_MEMALIGN)
free( ptr );
-#elif defined(HAVE__ALIGNED_MALLOC)
+#elif defined(OPJ_HAVE__ALIGNED_MALLOC)
_aligned_free( ptr );
#else
/* Generic implementation has malloced pointer stored in front of used area */