1 /* Copyright (c) 2015-2016 The Khronos Group Inc.
2 * Copyright (c) 2015-2016 Valve Corporation
3 * Copyright (c) 2015-2016 LunarG, Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and/or associated documentation files (the "Materials"), to
7 * deal in the Materials without restriction, including without limitation the
8 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
9 * sell copies of the Materials, and to permit persons to whom the Materials
10 * are furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice(s) and this permission notice shall be included
13 * in all copies or substantial portions of the Materials.
14 *
15 * THE MATERIALS ARE 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.
18 *
19 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE
22 * USE OR OTHER DEALINGS IN THE MATERIALS
23 *
24 * Author: Courtney Goeltzenleuchter <courtney@LunarG.com>
25 *
26 */
27
28 #include "string.h"
29 #include "vk_layer_extension_utils.h"
30
31 #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
32
33 /*
34 * This file contains utility functions for layers
35 */
36
util_GetExtensionProperties(const uint32_t count,const VkExtensionProperties * layer_extensions,uint32_t * pCount,VkExtensionProperties * pProperties)37 VkResult util_GetExtensionProperties(const uint32_t count, const VkExtensionProperties *layer_extensions, uint32_t *pCount,
38 VkExtensionProperties *pProperties) {
39 uint32_t copy_size;
40
41 if (pProperties == NULL || layer_extensions == NULL) {
42 *pCount = count;
43 return VK_SUCCESS;
44 }
45
46 copy_size = *pCount < count ? *pCount : count;
47 memcpy(pProperties, layer_extensions, copy_size * sizeof(VkExtensionProperties));
48 *pCount = copy_size;
49 if (copy_size < count) {
50 return VK_INCOMPLETE;
51 }
52
53 return VK_SUCCESS;
54 }
55
util_GetLayerProperties(const uint32_t count,const VkLayerProperties * layer_properties,uint32_t * pCount,VkLayerProperties * pProperties)56 VkResult util_GetLayerProperties(const uint32_t count, const VkLayerProperties *layer_properties, uint32_t *pCount,
57 VkLayerProperties *pProperties) {
58 uint32_t copy_size;
59
60 if (pProperties == NULL || layer_properties == NULL) {
61 *pCount = count;
62 return VK_SUCCESS;
63 }
64
65 copy_size = *pCount < count ? *pCount : count;
66 memcpy(pProperties, layer_properties, copy_size * sizeof(VkLayerProperties));
67 *pCount = copy_size;
68 if (copy_size < count) {
69 return VK_INCOMPLETE;
70 }
71
72 return VK_SUCCESS;
73 }
74