// Copyright (C) 2016 Jérôme Leclercq
// This file is part of the "Nazara Engine - Vulkan"
// For conditions of distribution and use, see copyright notice in Config.hpp

#include <Nazara/Vulkan/VkCommandPool.hpp>
#include <Nazara/Vulkan/VkCommandBuffer.hpp>
#include <Nazara/Vulkan/Debug.hpp>

namespace Nz
{
	namespace Vk
	{
		CommandBuffer CommandPool::AllocateCommandBuffer(VkCommandBufferLevel level)
		{
			VkCommandBufferAllocateInfo createInfo =
			{
				VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
				nullptr,
				m_handle,
				level,
				1U
			};

			VkCommandBuffer handle = VK_NULL_HANDLE;
			m_lastErrorCode = m_device.vkAllocateCommandBuffers(m_device, &createInfo, &handle);

			return CommandBuffer(*this, handle);
		}

		std::vector<CommandBuffer> CommandPool::AllocateCommandBuffers(UInt32 commandBufferCount, VkCommandBufferLevel level)
		{
			VkCommandBufferAllocateInfo createInfo =
			{
				VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
				nullptr,
				m_handle,
				level,
				1U
			};

			std::vector<VkCommandBuffer> handles(commandBufferCount, VK_NULL_HANDLE);
			m_lastErrorCode = m_device.vkAllocateCommandBuffers(m_device, &createInfo, handles.data());
			if (m_lastErrorCode != VkResult::VK_SUCCESS)
				return std::vector<CommandBuffer>();

			std::vector<CommandBuffer> commandBuffers;
			for (UInt32 i = 0; i < commandBufferCount; ++i)
				commandBuffers.emplace_back(CommandBuffer(*this, handles[i]));

			return commandBuffers;
		}
	}
}