/*

* Vulkan Samples

*

* Copyright (C) 2015-2016 Valve Corporation

* Copyright (C) 2015-2016 LunarG, Inc.

*

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

*

* http://www.apache.org/licenses/LICENSE-2.0

*

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

*/

/*

VULKAN_SAMPLE_SHORT_DESCRIPTION

create and destroy a Vulkan physical device

*/

/* This is part of the draw cube progression */

#include <iostream>

#include <cassert>

#include <cstdlib>

#include <util_init.hpp>

int sample_main(int argc, char *argv[]) {

struct sample_info info = {};

init_global_layer_properties(info);

init_instance(info, "vulkansamples_device");

init_enumerate_device(info);

/* VULKAN_KEY_START */

VkDeviceQueueCreateInfo queue_info = {};

vkGetPhysicalDeviceQueueFamilyProperties(info.gpus[0], &info.queue_count,

NULL);

assert(info.queue_count >= 1);

info.queue_props.resize(info.queue_count);

vkGetPhysicalDeviceQueueFamilyProperties(info.gpus[0], &info.queue_count,

info.queue_props.data());

assert(info.queue_count >= 1);

bool found = false;

for (unsigned int i = 0; i < info.queue_count; i++) {

if (info.queue_props[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) {

queue_info.queueFamilyIndex = i;

found = true;

break;

}

}

assert(found);

assert(info.queue_count >= 1);

float queue_priorities[1] = {0.0};

queue_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;

queue_info.pNext = NULL;

queue_info.queueCount = 1;

queue_info.pQueuePriorities = queue_priorities;

VkDeviceCreateInfo device_info = {};

device_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;

device_info.pNext = NULL;

device_info.queueCreateInfoCount = 1;

device_info.pQueueCreateInfos = &queue_info;

device_info.enabledExtensionCount = 0;

device_info.ppEnabledExtensionNames = NULL;

device_info.enabledLayerCount = 0;

device_info.ppEnabledLayerNames = NULL;

device_info.pEnabledFeatures = NULL;

VkDevice device;

VkResult U_ASSERT_ONLY res =

vkCreateDevice(info.gpus[0], &device_info, NULL, &device);

assert(res == VK_SUCCESS);

vkDestroyDevice(device, NULL);

/* VULKAN_KEY_END */

destroy_instance(info);

return 0;

}