Mesa (master): util/vk_alloc: Add a vk_zalloc2 helper

[Jason Ekstrand]

Module: Mesa
Branch: master
Commit: 9b9fb6d212147d4d240285b70fd7346d1326d212
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9b9fb6d212147d4d240285b70fd7346d1326d212

Author: Jason Ekstrand <jason.ekstrand at intel.com>
Date:   Thu Oct 27 01:33:39 2016 -0700

util/vk_alloc: Add a vk_zalloc2 helper

Reviewed-by: Topi Pohjolainen <topi.pohjolainen at intel.com>

---

 src/util/vk_alloc.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/util/vk_alloc.h b/src/util/vk_alloc.h
index 7ae5c9d..2915021 100644
--- a/src/util/vk_alloc.h
+++ b/src/util/vk_alloc.h
@@ -25,6 +25,7 @@
 
 /* common allocation inlines for vulkan drivers */
 
+#include <string.h>
 #include <vulkan/vulkan.h>
 
 static inline void *
@@ -64,6 +65,21 @@ vk_alloc2(const VkAllocationCallbacks *parent_alloc,
       return vk_alloc(parent_alloc, size, align, scope);
 }
 
+static inline void *
+vk_zalloc2(const VkAllocationCallbacks *parent_alloc,
+           const VkAllocationCallbacks *alloc,
+           size_t size, size_t align,
+           VkSystemAllocationScope scope)
+{
+   void *mem = vk_alloc2(parent_alloc, alloc, size, align, scope);
+   if (mem == NULL)
+      return NULL;
+
+   memset(mem, 0, size);
+
+   return mem;
+}
+
 static inline void
 vk_free2(const VkAllocationCallbacks *parent_alloc,
          const VkAllocationCallbacks *alloc,