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_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
  53 static inline void *
  54 vk_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
  61 static inline void
  62 vk_free(const VkAllocationCallbacks *alloc, void *data)
  63 {
  64    if (data == NULL)
  65       return;
  66
  67    alloc->pfnFree(alloc->pUserData, data);
  68 }
  69
  70 static inline void *
  71 vk_alloc2(const VkAllocationCallbacks *parent_alloc,
  72           const VkAllocationCallbacks *alloc,
  73           size_t size, size_t align,
  74           VkSystemAllocationScope scope)
  75 {
  76    if (alloc)
  77       return vk_alloc(alloc, size, align, scope);
  78    else
  79       return vk_alloc(parent_alloc, size, align, scope);
  80 }
  81
  82 static inline void *
  83 vk_zalloc2(const VkAllocationCallbacks *parent_alloc,
  84            const VkAllocationCallbacks *alloc,
  85            size_t size, size_t align,
  86            VkSystemAllocationScope scope)
  87 {
  88    void *mem = vk_alloc2(parent_alloc, alloc, size, align, scope);
  89    if (mem == NULL)
  90       return NULL;
  91
  92    memset(mem, 0, size);
  93
  94    return mem;
  95 }
  96
  97 static inline void
  98 vk_free2(const VkAllocationCallbacks *parent_alloc,
  99          const VkAllocationCallbacks *alloc,
 100          void *data)
 101 {
 102    if (alloc)
 103       vk_free(alloc, data);
 104    else
 105       vk_free(parent_alloc, data);
 106 }
 107
 108 #endif