1/*
2 * Copyright © 2015 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23#ifndef VK_ALLOC_H
24#define VK_ALLOC_H
25
26/* common allocation inlines for vulkan drivers */
27
28#include <string.h>
29#include <vulkan/vulkan.h>
30
31static inline void *
32vk_alloc(const VkAllocationCallbacks *alloc,
33         size_t size, size_t align,
34         VkSystemAllocationScope scope)
35{
36   return alloc->pfnAllocation(alloc->pUserData, size, align, scope);
37}
38
39static inline void *
40vk_zalloc(const VkAllocationCallbacks *alloc,
41          size_t size, size_t align,
42          VkSystemAllocationScope scope)
43{
44   void *mem = vk_alloc(alloc, size, align, scope);
45   if (mem == NULL)
46      return NULL;
47
48   memset(mem, 0, size);
49
50   return mem;
51}
52
53static inline void *
54vk_realloc(const VkAllocationCallbacks *alloc,
55           void *ptr, size_t size, size_t align,
56           VkSystemAllocationScope scope)
57{
58   return alloc->pfnReallocation(alloc->pUserData, ptr, size, align, scope);
59}
60
61static inline void
62vk_free(const VkAllocationCallbacks *alloc, void *data)
63{
64   if (data == NULL)
65      return;
66
67   alloc->pfnFree(alloc->pUserData, data);
68}
69
70static inline char *
71vk_strdup(const VkAllocationCallbacks *alloc, const char *s,
72          VkSystemAllocationScope scope)
73{
74   if (s == NULL)
75      return NULL;
76
77   size_t size = strlen(s) + 1;
78   char *copy = vk_alloc(alloc, size, 1, scope);
79   if (copy == NULL)
80      return NULL;
81
82   memcpy(copy, s, size);
83
84   return copy;
85}
86
87static inline void *
88vk_alloc2(const VkAllocationCallbacks *parent_alloc,
89          const VkAllocationCallbacks *alloc,
90          size_t size, size_t align,
91          VkSystemAllocationScope scope)
92{
93   if (alloc)
94      return vk_alloc(alloc, size, align, scope);
95   else
96      return vk_alloc(parent_alloc, size, align, scope);
97}
98
99static inline void *
100vk_zalloc2(const VkAllocationCallbacks *parent_alloc,
101           const VkAllocationCallbacks *alloc,
102           size_t size, size_t align,
103           VkSystemAllocationScope scope)
104{
105   void *mem = vk_alloc2(parent_alloc, alloc, size, align, scope);
106   if (mem == NULL)
107      return NULL;
108
109   memset(mem, 0, size);
110
111   return mem;
112}
113
114static inline void
115vk_free2(const VkAllocationCallbacks *parent_alloc,
116         const VkAllocationCallbacks *alloc,
117         void *data)
118{
119   if (alloc)
120      vk_free(alloc, data);
121   else
122      vk_free(parent_alloc, data);
123}
124
125#endif
126