text: /*
   * 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 Vulkan command buffer
  */
  
  /* This is part of the draw cube progression */
  
  #include <util_init.hpp>
  #include <assert.h>
  #include <cstdlib>
  
  int sample_main(int argc, char *argv[]) {
      VkResult U_ASSERT_ONLY res;
      struct sample_info info = {};
      char sample_title[] = "Command Buffer Sample";
  
      init_global_layer_properties(info);
      init_instance(info, sample_title);
      init_enumerate_device(info);
      init_device(info);
      init_queue_family_index(info);
  
      /* VULKAN_KEY_START */
  
      /* Create a command pool to allocate our command buffer from */
      VkCommandPoolCreateInfo cmd_pool_info = {};
      cmd_pool_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
      cmd_pool_info.pNext = NULL;
      cmd_pool_info.queueFamilyIndex = info.graphics_queue_family_index;
      cmd_pool_info.flags = 0;
  
      res = vkCreateCommandPool(info.device, &cmd_pool_info, NULL, &info.cmd_pool);
      assert(res == VK_SUCCESS);
  
      /* Create the command buffer from the command pool */
      VkCommandBufferAllocateInfo cmd = {};
      cmd.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
      cmd.pNext = NULL;
      cmd.commandPool = info.cmd_pool;
      cmd.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
      cmd.commandBufferCount = 1;
  
      res = vkAllocateCommandBuffers(info.device, &cmd, &info.cmd);
      assert(res == VK_SUCCESS);
  
      /* VULKAN_KEY_END */
  
      VkCommandBuffer cmd_bufs[1] = {info.cmd};
      vkFreeCommandBuffers(info.device, info.cmd_pool, 1, cmd_bufs);
      vkDestroyCommandPool(info.device, info.cmd_pool, NULL);
      destroy_device(info);
      destroy_instance(info);
      return 0;
  }
  