1 /*
2 * Copyright (c) 2023 The Khronos Group Inc.
3 * Copyright (c) 2023 Valve Corporation
4 * Copyright (c) 2023 LunarG, Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and/or associated documentation files (the "Materials"), to
8 * deal in the Materials without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Materials, and to permit persons to whom the Materials are
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice(s) and this permission notice shall be included in
14 * all copies or substantial portions of the Materials.
15 *
16 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19 *
20 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE
23 * USE OR OTHER DEALINGS IN THE MATERIALS.
24 *
25 * Author: Charles Giessen <charles@lunarg.com>
26 */
27
28 #include <vulkan/vulkan.h>
29
30 #include <chrono>
31 #include <iostream>
32 #include <vector>
33 #include <string>
34 #include <iomanip>
35 #include <thread>
36
main()37 int main() {
38 // uint32_t iterations = 20;
39 // std::vector<std::chrono::microseconds> samples;
40 // samples.resize(iterations);
41 // for (uint32_t i = 0; i < iterations; i++) {
42 // auto t1 = std::chrono::system_clock::now();
43 // uint32_t count = 0;
44 // vkEnumerateInstanceExtensionProperties(nullptr, &count, nullptr);
45 // // vkEnumerateInstanceLayerProperties(&count, nullptr);
46 // // vkEnumerateInstanceVersion(&count);
47 // auto t2 = std::chrono::system_clock::now();
48 // samples[i] = std::chrono::duration_cast<std::chrono::microseconds>(t2 - t1);
49 // }
50 // std::chrono::microseconds total_time{};
51 // for (uint32_t i = 0; i < iterations; i++) {
52 // total_time += samples[i];
53 // }
54 // std::cout << "average time " << total_time.count() / iterations << " (μs)\n";
55 // std::cout << std::setw(10) << "Iteration" << std::setw(12) << " Time (μs)\n";
56 // for (uint32_t i = 0; i < iterations; i++) {
57 // std::cout << std::setw(10) << std::to_string(i) << std::setw(12) << samples[i].count() << "\n";
58 // }
59
60 uint32_t count = 0;
61 VkInstanceCreateInfo ci{};
62 VkInstance i{};
63 auto res = vkCreateInstance(&ci, nullptr, &i);
64 if (res != VK_SUCCESS) return -1;
65 std::cout << "After called vkCreateInstance\n";
66 do {
67 std::cout << '\n' << "Press a key to continue...";
68 } while (std::cin.get() != '\n');
69 vkDestroyInstance(i, nullptr);
70 std::cout << "After called vkDestroyInstance\n";
71 do {
72 std::cout << '\n' << "Press a key to continue...";
73 } while (std::cin.get() != '\n');
74 }
75