util: Add an aligned realloc function

Mesa has one of these in imports.h, so u_memory needs one as well. This
is the version from mesa ported.

Reviewed-by: Marek Olšák <[email protected]>
Reviewed-by: Kristian H. Kristensen <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3024>

1 files changed, 2 insertions, 16 deletions

diff --git a/src/util/os_memory_stdc.h b/src/util/os_memory_stdc.h
index a4a670d589a..bda5715998f 100644
--- a/src/util/os_memory_stdc.h
+++ b/src/util/os_memory_stdc.h
@@ -45,27 +45,13 @@
 #define os_realloc( _old_ptr, _old_size, _new_size) \
    realloc(_old_ptr, _new_size + 0*(_old_size))
 
-
-#if defined(HAVE_POSIX_MEMALIGN)
-
-static inline void *
-os_malloc_aligned(size_t size, size_t alignment)
-{
-   void *ptr;
-   alignment = (alignment + sizeof(void*) - 1) & ~(sizeof(void*) - 1);
-   if(posix_memalign(&ptr, alignment, size) != 0)
-      return NULL;
-   return ptr;
-}
-
-#define os_free_aligned(_ptr) free(_ptr)
-
-#elif DETECT_OS_WINDOWS
+#if DETECT_OS_WINDOWS
 
 #include <malloc.h>
 
 #define os_malloc_aligned(_size, _align) _aligned_malloc(_size, _align)
 #define os_free_aligned(_ptr) _aligned_free(_ptr)
+#define os_realloc_aligned(_ptr, _oldsize, _newsize, _alignment) _aligned_realloc(_ptr, _newsize, _alignment)
 
 #else