util/vk_alloc: Add a vk_zalloc2 helper

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

diff --git a/src/util/vk_alloc.h b/src/util/vk_alloc.h
index 7ae5c9d..2915021 100644 (file)
--- 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,