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 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 * Author: Courtney Goeltzenleuchter <courtney@LunarG.com>
18 *
19 */
20
21 #include "string.h"
22 #include "vk_layer_extension_utils.h"
23
24 #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
25
26 /*
27 * This file contains utility functions for layers
28 */
29
util_GetExtensionProperties(const uint32_t count,const VkExtensionProperties * layer_extensions,uint32_t * pCount,VkExtensionProperties * pProperties)30 VK_LAYER_EXPORT VkResult util_GetExtensionProperties(const uint32_t count, const VkExtensionProperties *layer_extensions,
31 uint32_t *pCount, VkExtensionProperties *pProperties) {
32 uint32_t copy_size;
33
34 if (pProperties == NULL || layer_extensions == NULL) {
35 *pCount = count;
36 return VK_SUCCESS;
37 }
38
39 copy_size = *pCount < count ? *pCount : count;
40 memcpy(pProperties, layer_extensions, copy_size * sizeof(VkExtensionProperties));
41 *pCount = copy_size;
42 if (copy_size < count) {
43 return VK_INCOMPLETE;
44 }
45
46 return VK_SUCCESS;
47 }
48
util_GetLayerProperties(const uint32_t count,const VkLayerProperties * layer_properties,uint32_t * pCount,VkLayerProperties * pProperties)49 VK_LAYER_EXPORT VkResult util_GetLayerProperties(const uint32_t count, const VkLayerProperties *layer_properties, uint32_t *pCount,
50 VkLayerProperties *pProperties) {
51 uint32_t copy_size;
52
53 if (pProperties == NULL || layer_properties == NULL) {
54 *pCount = count;
55 return VK_SUCCESS;
56 }
57
58 copy_size = *pCount < count ? *pCount : count;
59 memcpy(pProperties, layer_properties, copy_size * sizeof(VkLayerProperties));
60 *pCount = copy_size;
61 if (copy_size < count) {
62 return VK_INCOMPLETE;
63 }
64
65 return VK_SUCCESS;
66 }
67