src/vulkan/util/vk_alloc.h

   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
  31 static inline void *
  32 vk_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
  39 static inline void *
  40 vk_realloc(const VkAllocationCallbacks *alloc,
  41            void *ptr, size_t size, size_t align,
  42            VkSystemAllocationScope scope)
  43 {
  44    return alloc->pfnReallocation(alloc->pUserData, ptr, size, align, scope);
  45 }
  46
  47 static inline void
  48 vk_free(const VkAllocationCallbacks *alloc, void *data)
  49 {
  50    if (data == NULL)
  51       return;
  52
  53    alloc->pfnFree(alloc->pUserData, data);
  54 }
  55
  56 static inline void *
  57 vk_alloc2(const VkAllocationCallbacks *parent_alloc,
  58           const VkAllocationCallbacks *alloc,
  59           size_t size, size_t align,
  60           VkSystemAllocationScope scope)
  61 {
  62    if (alloc)
  63       return vk_alloc(alloc, size, align, scope);
  64    else
  65       return vk_alloc(parent_alloc, size, align, scope);
  66 }
  67
  68 static inline void *
  69 vk_zalloc2(const VkAllocationCallbacks *parent_alloc,
  70            const VkAllocationCallbacks *alloc,
  71            size_t size, size_t align,
  72            VkSystemAllocationScope scope)
  73 {
  74    void *mem = vk_alloc2(parent_alloc, alloc, size, align, scope);
  75    if (mem == NULL)
  76       return NULL;
  77
  78    memset(mem, 0, size);
  79
  80    return mem;
  81 }
  82
  83 static inline void
  84 vk_free2(const VkAllocationCallbacks *parent_alloc,
  85          const VkAllocationCallbacks *alloc,
  86          void *data)
  87 {
  88    if (alloc)
  89       vk_free(alloc, data);
  90    else
  91       vk_free(parent_alloc, data);
  92 }
  93
  94 #endif