mirror of
https://github.com/openharmony/third_party_vulkan-loader.git
synced 2026-07-21 04:25:25 -04:00
ZhangLiang
75 lines
3.0 KiB
C++
75 lines
3.0 KiB
C++
/*
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* Copyright (c) 2023 The Khronos Group Inc.
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* Copyright (c) 2023 Valve Corporation
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* Copyright (c) 2023 LunarG, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and/or associated documentation files (the "Materials"), to
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* deal in the Materials without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Materials, and to permit persons to whom the Materials are
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice(s) and this permission notice shall be included in
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* all copies or substantial portions of the Materials.
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*
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* THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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*
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE
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* USE OR OTHER DEALINGS IN THE MATERIALS.
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*
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* Author: Charles Giessen <charles@lunarg.com>
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*/
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#include <vulkan/vulkan.h>
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#include <chrono>
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#include <iostream>
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#include <vector>
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#include <string>
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#include <iomanip>
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#include <thread>
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int main() {
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// uint32_t iterations = 20;
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// std::vector<std::chrono::microseconds> samples;
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// samples.resize(iterations);
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// for (uint32_t i = 0; i < iterations; i++) {
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// auto t1 = std::chrono::system_clock::now();
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// uint32_t count = 0;
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// vkEnumerateInstanceExtensionProperties(nullptr, &count, nullptr);
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// // vkEnumerateInstanceLayerProperties(&count, nullptr);
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// // vkEnumerateInstanceVersion(&count);
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// auto t2 = std::chrono::system_clock::now();
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// samples[i] = std::chrono::duration_cast<std::chrono::microseconds>(t2 - t1);
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// }
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// std::chrono::microseconds total_time{};
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// for (uint32_t i = 0; i < iterations; i++) {
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// total_time += samples[i];
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// }
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// std::cout << "average time " << total_time.count() / iterations << " (μs)\n";
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// std::cout << std::setw(10) << "Iteration" << std::setw(12) << " Time (μs)\n";
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// for (uint32_t i = 0; i < iterations; i++) {
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// std::cout << std::setw(10) << std::to_string(i) << std::setw(12) << samples[i].count() << "\n";
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// }
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uint32_t count = 0;
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VkInstanceCreateInfo ci{};
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VkInstance i{};
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auto res = vkCreateInstance(&ci, nullptr, &i);
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if (res != VK_SUCCESS) return -1;
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std::cout << "After called vkCreateInstance\n";
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do {
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std::cout << '\n' << "Press a key to continue...";
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} while (std::cin.get() != '\n');
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vkDestroyInstance(i, nullptr);
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std::cout << "After called vkDestroyInstance\n";
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do {
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std::cout << '\n' << "Press a key to continue...";
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} while (std::cin.get() != '\n');
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}
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