vulkan: Adds helpers for vk_object (de)alloation and (de)initialization.

Signed-off-by: Hyunjun Ko <zzoon@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5539>

src/vulkan/util/vk_object.c

@@ -77,6 +77,47 @@ vk_device_finish(UNUSED struct vk_device *device)
    vk_object_base_finish(&device->base);
 }
 
+void *
+vk_object_alloc(struct vk_device *device,
+                const VkAllocationCallbacks *alloc,
+                size_t size,
+                VkObjectType obj_type)
+{
+   void *ptr = vk_alloc2(&device->alloc, alloc, size, 8,
+                         VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
+   if (ptr == NULL)
+      return NULL;
+
+   vk_object_base_init(device, (struct vk_object_base *)ptr, obj_type);
+
+   return ptr;
+}
+
+void *
+vk_object_zalloc(struct vk_device *device,
+                const VkAllocationCallbacks *alloc,
+                size_t size,
+                VkObjectType obj_type)
+{
+   void *ptr = vk_zalloc2(&device->alloc, alloc, size, 8,
+                         VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
+   if (ptr == NULL)
+      return NULL;
+
+   vk_object_base_init(device, (struct vk_object_base *)ptr, obj_type);
+
+   return ptr;
+}
+
+void
+vk_object_free(struct vk_device *device,
+               const VkAllocationCallbacks *alloc,
+               void *data)
+{
+   vk_object_base_finish((struct vk_object_base *)data);
+   vk_free2(&device->alloc, alloc, data);
+}
+
 VkResult
 vk_private_data_slot_create(struct vk_device *device,
                             const VkPrivateDataSlotCreateInfoEXT* pCreateInfo,

src/vulkan/util/vk_object.h

@@ -124,6 +124,24 @@ void vk_device_finish(struct vk_device *device);
 #define VK_FROM_HANDLE(__driver_type, __name, __handle) \
    struct __driver_type *__name = __driver_type ## _from_handle(__handle)
 
+/* Helpers for vk object (de)allocation and (de)initialization */
+void *
+vk_object_alloc(struct vk_device *device,
+                const VkAllocationCallbacks *alloc,
+                size_t size,
+                VkObjectType vk_obj_type);
+
+void *
+vk_object_zalloc(struct vk_device *device,
+                const VkAllocationCallbacks *alloc,
+                size_t size,
+                VkObjectType vk_obj_type);
+
+void
+vk_object_free(struct vk_device *device,
+               const VkAllocationCallbacks *alloc,
+               void *data);
+
 
 struct vk_private_data_slot {
    struct vk_object_base base;