Mesa (master): gallium/util: Add align_calloc

[Axel Davy]

Module: Mesa
Branch: master
Commit: 54010cf8b6da71a1b14c0dc586bb7e6be27052de
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=54010cf8b6da71a1b14c0dc586bb7e6be27052de

Author: Axel Davy <axel.davy at ens.fr>
Date:   Fri Oct 21 17:25:08 2016 +0200

gallium/util: Add align_calloc

Add implementation for align_calloc,
which is align_malloc + memset.

v2: add if (ptr) before memset.
Fix indentation.

Signed-off-by: Axel Davy <axel.davy at ens.fr>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>

---

 src/gallium/auxiliary/util/u_memory.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/gallium/auxiliary/util/u_memory.h b/src/gallium/auxiliary/util/u_memory.h
index 597df62..66c3ba4 100644
--- a/src/gallium/auxiliary/util/u_memory.h
+++ b/src/gallium/auxiliary/util/u_memory.h
@@ -63,6 +63,14 @@ extern "C" {
 #define align_malloc(_size, _alignment) os_malloc_aligned(_size, _alignment)
 #define align_free(_ptr) os_free_aligned(_ptr)
 
+static inline void *
+align_calloc(size_t size, unsigned long alignment)
+{
+   void *ptr = align_malloc(size, alignment);
+   if (ptr)
+      memset(ptr, 0, size);
+   return ptr;
+}
 
 /**
  * Duplicate a block of memory.