#include "Application.h"
#include <iostream>
#include <string>

using namespace std;

#ifdef _WIN32

#else
	#include <game-activity/native_app_glue/android_native_app_glue.h>
	#include <game-activity/GameActivity.h>
    #include <vulkan/vulkan_android.h>
	#include "../app/src/main/cpp/AndroidOut.h"
#endif



void Application::initWindow()
{
#ifdef _WIN32
	glfwInit();

	glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
	glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);

	window = glfwCreateWindow(480, 480, "Vulkan", nullptr, nullptr);
#else

#endif
}

void Application::run()
{
	initVulkan();
	cout << "initVulkan finished" << endl;
	mainLoop();
	cleanup();
}

#ifdef _WIN32
#else
	extern android_app* g_android_app;
#endif

void Application::createSurface() {
#ifdef _WIN32
	if (glfwCreateWindowSurface(instance, window, nullptr, &surface) != VK_SUCCESS) {
		throw std::runtime_error("failed to create window surface!");
	}
#else

	//VkSurfaceKHR surface{};

	VkAndroidSurfaceCreateInfoKHR info{VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR};

	info.window = g_android_app->window;

	VK_CHECK(vkCreateAndroidSurfaceKHR(instance, &info, nullptr, &surface));
#endif
}



void Application::initVulkan()
{
	initWindow();
	createInstance();          // 创建 Vulkan 实例
	setupDebugMessenger(); 		// 在这里调用
	createSurface();           // 创建窗口表面
	pickPhysicalDevice(physicalDevice, surface);      // 选择物理设备
	createLogicalDevice();     // 创建逻辑设备
	createSwapChain();         // 创建交换链
	createImageViews();        // 创建交换链图像视图
	createRenderPass();        // 创建渲染流程
	createPipelineLayout(); // 在这里调用
	createGraphicsPipeline();  // 创建图形管线
	createFramebuffers();      // 创建帧缓冲区
	createCommandPool();       // 创建命令池
	createCommandBuffer();     // 创建命令缓冲区
	createSyncObjects();       // 创建同步对象
	inited = true;
}

void Application::createImageViews() {
	swapChainImageViews.resize(swapChainImages.size());

	for (size_t i = 0; i < swapChainImages.size(); i++) {
		VkImageViewCreateInfo createInfo{};
		createInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
		createInfo.image = swapChainImages[i];
		createInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
		createInfo.format = swapChainImageFormat;
		createInfo.components.r = VK_COMPONENT_SWIZZLE_IDENTITY;
		createInfo.components.g = VK_COMPONENT_SWIZZLE_IDENTITY;
		createInfo.components.b = VK_COMPONENT_SWIZZLE_IDENTITY;
		createInfo.components.a = VK_COMPONENT_SWIZZLE_IDENTITY;
		createInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
		createInfo.subresourceRange.baseMipLevel = 0;
		createInfo.subresourceRange.levelCount = 1;
		createInfo.subresourceRange.baseArrayLayer = 0;
		createInfo.subresourceRange.layerCount = 1;

		if (vkCreateImageView(device, &createInfo, nullptr, &swapChainImageViews[i]) != VK_SUCCESS) {
			throw std::runtime_error("failed to create image views!");
		}
	}
}

void Application::createFramebuffers() {
	swapChainFramebuffers.resize(swapChainImageViews.size());

	for (size_t i = 0; i < swapChainImageViews.size(); i++) {
		VkImageView attachments[] = {
			swapChainImageViews[i]
		};

		VkFramebufferCreateInfo framebufferInfo{};
		framebufferInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
		framebufferInfo.renderPass = renderPass;
		framebufferInfo.attachmentCount = 1;
		framebufferInfo.pAttachments = attachments;
		framebufferInfo.width = swapChainExtent.width;
		framebufferInfo.height = swapChainExtent.height;
		framebufferInfo.layers = 1;

		if (vkCreateFramebuffer(device, &framebufferInfo, nullptr, &swapChainFramebuffers[i]) != VK_SUCCESS) {
			throw std::runtime_error("failed to create framebuffer!");
		}
	}
}



void Application::mainLoop()
{
#ifdef _WIN32
	while (!glfwWindowShouldClose(window))
	{
		glfwPollEvents();
		drawFrame(); // 在这里调用
	}
#else

#endif
	vkDeviceWaitIdle(device); // 等待设备空闲
}



void Application::createLogicalDevice() {
	QueueFamilyIndices indices = findQueueFamilies(physicalDevice, surface);

	std::vector<VkDeviceQueueCreateInfo> queueCreateInfos;
	std::set<uint32_t> uniqueQueueFamilies = { indices.graphicsFamily.value(), indices.presentFamily.value() };

	float queuePriority = 1.0f;
	for (uint32_t queueFamily : uniqueQueueFamilies) {
		VkDeviceQueueCreateInfo queueCreateInfo{};
		queueCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
		queueCreateInfo.queueFamilyIndex = queueFamily;
		queueCreateInfo.queueCount = 1;
		queueCreateInfo.pQueuePriorities = &queuePriority;
		queueCreateInfos.push_back(queueCreateInfo);
	}

	VkPhysicalDeviceFeatures deviceFeatures{};

	VkDeviceCreateInfo createInfo{};
	createInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
	createInfo.queueCreateInfoCount = static_cast<uint32_t>(queueCreateInfos.size());
	createInfo.pQueueCreateInfos = queueCreateInfos.data();
	createInfo.pEnabledFeatures = &deviceFeatures;

	// 启用交换链扩展
	const std::vector<const char*> deviceExtensions = {
		VK_KHR_SWAPCHAIN_EXTENSION_NAME
	};
	createInfo.enabledExtensionCount = static_cast<uint32_t>(deviceExtensions.size());
	createInfo.ppEnabledExtensionNames = deviceExtensions.data();

	if (vkCreateDevice(physicalDevice, &createInfo, nullptr, &device) != VK_SUCCESS) {
		throw std::runtime_error("failed to create logical device!");
	}

	vkGetDeviceQueue(device, indices.graphicsFamily.value(), 0, &graphicsQueue);
	vkGetDeviceQueue(device, indices.presentFamily.value(), 0, &presentQueue);
}


void Application::createSwapChain() {
	// 选择交换链格式、颜色空间和分辨率
	VkSurfaceFormatKHR surfaceFormat = { VK_FORMAT_R8G8B8A8_SRGB, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR };
	VkPresentModeKHR presentMode = VK_PRESENT_MODE_FIFO_KHR;
    VkSurfaceCapabilitiesKHR surface_capabilities{};
    vkGetPhysicalDeviceSurfaceCapabilitiesKHR(this->physicalDevice,  this->surface, &surface_capabilities);

    VkExtent2D extent = surface_capabilities.currentExtent;

	uint32_t imageCount = 2;
	// 创建交换链
	VkSwapchainCreateInfoKHR createInfo{};
	createInfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
	createInfo.surface = surface;
	createInfo.minImageCount = imageCount; // 双缓冲
	createInfo.imageFormat = surfaceFormat.format;
	createInfo.imageColorSpace = surfaceFormat.colorSpace;
	createInfo.imageExtent = extent;
	createInfo.imageArrayLayers = 1;
	createInfo.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;

	QueueFamilyIndices indices = findQueueFamilies(physicalDevice, surface);
	uint32_t queueFamilyIndices[] = { indices.graphicsFamily.value(), indices.presentFamily.value() };

	if (indices.graphicsFamily != indices.presentFamily) {
		createInfo.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
		createInfo.queueFamilyIndexCount = 2;
		createInfo.pQueueFamilyIndices = queueFamilyIndices;
	}
	else {
		createInfo.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
		createInfo.queueFamilyIndexCount = 0; // Optional
		createInfo.pQueueFamilyIndices = nullptr; // Optional
	}

	createInfo.preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
	createInfo.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
	createInfo.presentMode = presentMode;
	createInfo.clipped = VK_TRUE;
	createInfo.oldSwapchain = VK_NULL_HANDLE;

	if (vkCreateSwapchainKHR(device, &createInfo, nullptr, &swapChain) != VK_SUCCESS) {
		throw std::runtime_error("failed to create swap chain!");
	}


	vkGetSwapchainImagesKHR(device, swapChain, &imageCount, nullptr);
	swapChainImages.resize(imageCount);
	vkGetSwapchainImagesKHR(device, swapChain, &imageCount, swapChainImages.data());

	swapChainImageFormat = surfaceFormat.format;
	swapChainExtent = extent;
}

void Application::createPipelineLayout() {
	VkPipelineLayoutCreateInfo pipelineLayoutInfo{};
	pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
	pipelineLayoutInfo.setLayoutCount = 0; // 可选：描述符集布局
	pipelineLayoutInfo.pSetLayouts = nullptr; // 可选：描述符集布局
	pipelineLayoutInfo.pushConstantRangeCount = 0; // 可选：推送常量范围
	pipelineLayoutInfo.pPushConstantRanges = nullptr; // 可选：推送常量范围

	if (vkCreatePipelineLayout(device, &pipelineLayoutInfo, nullptr, &pipelineLayout) != VK_SUCCESS) {
		throw std::runtime_error("failed to create pipeline layout!");
	}
}

void Application::createGraphicsPipeline() {
	// 顶点着色器和片段着色器
	auto vertShaderCode = readFile("shaders/simple_shader.vert.spv");
	auto fragShaderCode = readFile("shaders/simple_shader.frag.spv");

	// 创建着色器模块
	VkShaderModule vertShaderModule = createShaderModule(this->device, vertShaderCode);
	VkShaderModule fragShaderModule = createShaderModule(this->device, fragShaderCode);

	// 定义着色器阶段
	VkPipelineShaderStageCreateInfo vertShaderStageInfo{};
	vertShaderStageInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
	vertShaderStageInfo.stage = VK_SHADER_STAGE_VERTEX_BIT;
	vertShaderStageInfo.module = vertShaderModule;
	vertShaderStageInfo.pName = "main";

	VkPipelineShaderStageCreateInfo fragShaderStageInfo{};
	fragShaderStageInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
	fragShaderStageInfo.stage = VK_SHADER_STAGE_FRAGMENT_BIT;
	fragShaderStageInfo.module = fragShaderModule;
	fragShaderStageInfo.pName = "main";

	VkPipelineShaderStageCreateInfo shaderStages[] = { vertShaderStageInfo, fragShaderStageInfo };

	// 顶点输入状态
	VkPipelineVertexInputStateCreateInfo vertexInputInfo{};
	vertexInputInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
	vertexInputInfo.vertexBindingDescriptionCount = 0;
	vertexInputInfo.pVertexBindingDescriptions = nullptr;
	vertexInputInfo.vertexAttributeDescriptionCount = 0;
	vertexInputInfo.pVertexAttributeDescriptions = nullptr;

	// 输入组装状态
	VkPipelineInputAssemblyStateCreateInfo inputAssembly{};
	inputAssembly.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
	inputAssembly.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
	inputAssembly.primitiveRestartEnable = VK_FALSE;

	// 视口状态
	VkViewport viewport{};
	viewport.x = 0.0f;
	viewport.y = 0.0f;
	viewport.width = (float)swapChainExtent.width;
	viewport.height = (float)swapChainExtent.height;
	viewport.minDepth = 0.0f;
	viewport.maxDepth = 1.0f;

	VkRect2D scissor{};
	scissor.offset = { 0, 0 };
	scissor.extent = swapChainExtent;

	VkPipelineViewportStateCreateInfo viewportState{};
	viewportState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
	viewportState.viewportCount = 1;
	viewportState.pViewports = &viewport;
	viewportState.scissorCount = 1;
	viewportState.pScissors = &scissor;

	// 光栅化状态
	VkPipelineRasterizationStateCreateInfo rasterizer{};
	rasterizer.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
	rasterizer.depthClampEnable = VK_FALSE;
	rasterizer.rasterizerDiscardEnable = VK_FALSE;
	rasterizer.polygonMode = VK_POLYGON_MODE_FILL;
	rasterizer.lineWidth = 1.0f;
	rasterizer.cullMode = VK_CULL_MODE_BACK_BIT;
	rasterizer.frontFace = VK_FRONT_FACE_CLOCKWISE;
	rasterizer.depthBiasEnable = VK_FALSE;

	// 多重采样状态
	VkPipelineMultisampleStateCreateInfo multisampling{};
	multisampling.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
	multisampling.sampleShadingEnable = VK_FALSE;
	multisampling.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;

	// 颜色混合状态
	VkPipelineColorBlendAttachmentState colorBlendAttachment{};
	colorBlendAttachment.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
	colorBlendAttachment.blendEnable = VK_FALSE;

	VkPipelineColorBlendStateCreateInfo colorBlending{};
	colorBlending.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
	colorBlending.logicOpEnable = VK_FALSE;
	colorBlending.attachmentCount = 1;
	colorBlending.pAttachments = &colorBlendAttachment;

	// 创建图形管线
	VkGraphicsPipelineCreateInfo pipelineInfo{};
	pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
	pipelineInfo.stageCount = 2;
	pipelineInfo.pStages = shaderStages;
	pipelineInfo.pVertexInputState = &vertexInputInfo;
	pipelineInfo.pInputAssemblyState = &inputAssembly;
	pipelineInfo.pViewportState = &viewportState;
	pipelineInfo.pRasterizationState = &rasterizer;
	pipelineInfo.pMultisampleState = &multisampling;
	pipelineInfo.pColorBlendState = &colorBlending;
	pipelineInfo.layout = pipelineLayout;
	pipelineInfo.renderPass = renderPass;
	pipelineInfo.subpass = 0;

	if (vkCreateGraphicsPipelines(device, VK_NULL_HANDLE, 1, &pipelineInfo, nullptr, &graphicsPipeline) != VK_SUCCESS) {
		throw std::runtime_error("failed to create graphics pipeline!");
	}

	// 销毁着色器模块
	vkDestroyShaderModule(device, fragShaderModule, nullptr);
	vkDestroyShaderModule(device, vertShaderModule, nullptr);
}

void Application::createRenderPass() {
	VkAttachmentDescription colorAttachment{};
	colorAttachment.format = swapChainImageFormat;
	colorAttachment.samples = VK_SAMPLE_COUNT_1_BIT;
	colorAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
	colorAttachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
	colorAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
	colorAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
	colorAttachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
	colorAttachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;

	VkAttachmentReference colorAttachmentRef{};
	colorAttachmentRef.attachment = 0;
	colorAttachmentRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;

	VkSubpassDescription subpass{};
	subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
	subpass.colorAttachmentCount = 1;
	subpass.pColorAttachments = &colorAttachmentRef;

	VkRenderPassCreateInfo renderPassInfo{};
	renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
	renderPassInfo.attachmentCount = 1;
	renderPassInfo.pAttachments = &colorAttachment;
	renderPassInfo.subpassCount = 1;
	renderPassInfo.pSubpasses = &subpass;

	if (vkCreateRenderPass(device, &renderPassInfo, nullptr, &renderPass) != VK_SUCCESS) {
		throw std::runtime_error("failed to create render pass!");
	}
}



void Application::createCommandPool() {
	QueueFamilyIndices queueFamilyIndices = findQueueFamilies(physicalDevice, surface);

	VkCommandPoolCreateInfo poolInfo{};
	poolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
	poolInfo.queueFamilyIndex = queueFamilyIndices.graphicsFamily.value();
	poolInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT; // 添加标志

	if (vkCreateCommandPool(device, &poolInfo, nullptr, &commandPool) != VK_SUCCESS) {
		throw std::runtime_error("failed to create command pool!");
	}
}

void Application::createCommandBuffer()
{
	//std::vector<VkCommandBuffer> commandBuffers = { commandBuffers_Left, commandBuffers_Right };
	VkCommandBufferAllocateInfo allocInfo{};
	allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
	allocInfo.commandPool = commandPool;
	allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
	allocInfo.commandBufferCount = 1;

	if (vkAllocateCommandBuffers(device, &allocInfo, &commandBuffers_Left) != VK_SUCCESS) {
		throw std::runtime_error("failed to allocate command buffers!");
	}

	if (vkAllocateCommandBuffers(device, &allocInfo, &commandBuffers_Right) != VK_SUCCESS) {
		throw std::runtime_error("failed to allocate command buffers!");
	}
}

void Application::createSyncObjects() 
{
	VkSemaphoreCreateInfo semaphoreInfo{};
	semaphoreInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;

	VkFenceCreateInfo fenceInfo{};
	fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
	fenceInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;

	vkCreateSemaphore(device, &semaphoreInfo, nullptr, &imageAvailableSemaphores_Left);
	vkCreateSemaphore(device, &semaphoreInfo, nullptr, &imageAvailableSemaphores_Right);
	vkCreateSemaphore(device, &semaphoreInfo, nullptr, &renderFinishedSemaphores_Left);
	vkCreateSemaphore(device, &semaphoreInfo, nullptr, &renderFinishedSemaphores_Right);
	vkCreateFence(device, &fenceInfo, nullptr, &inFlightFences_Left);
	vkCreateFence(device, &fenceInfo, nullptr, &inFlightFences_Right);
	
}

void Application::recordCommandBuffer(VkCommandBuffer commandBuffer, uint32_t imageIndex) 
{
	VkCommandBufferBeginInfo beginInfo{};
	beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
	beginInfo.flags = 0; // 可选标志
	beginInfo.pInheritanceInfo = nullptr; // 仅用于次级命令缓冲区

	if (vkBeginCommandBuffer(commandBuffer, &beginInfo) != VK_SUCCESS) {
		throw std::runtime_error("failed to begin recording command buffer!");
	}

	// 开始渲染流程
	VkRenderPassBeginInfo renderPassInfo{};
	renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
	renderPassInfo.renderPass = renderPass;
	renderPassInfo.framebuffer = swapChainFramebuffers[imageIndex]; // 使用正确的imageIndex
	renderPassInfo.renderArea.offset = { 0, 0 };
	renderPassInfo.renderArea.extent = swapChainExtent;

	VkClearValue clearColor = { {{0.0f, 0.0f, 0.0f, 1.0f}} };
	renderPassInfo.clearValueCount = 1;
	renderPassInfo.pClearValues = &clearColor;

	vkCmdBeginRenderPass(commandBuffer, &renderPassInfo, VK_SUBPASS_CONTENTS_INLINE);

	// 绑定图形管线
	vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, graphicsPipeline);

	// 绘制三角形
	vkCmdDraw(commandBuffer, 3, 1, 0, 0);

	// 结束渲染流程
	vkCmdEndRenderPass(commandBuffer);

	if (vkEndCommandBuffer(commandBuffer) != VK_SUCCESS) {
		throw std::runtime_error("failed to record command buffer!");
	}
}

void Application::drawLeft()
{
	cout << "call drawLeft     curFrame:" << to_string(currentFrame) << endl;
	// 1. 等待前一帧完成
	vkWaitForFences(device, 1, &inFlightFences_Left, VK_TRUE, UINT64_MAX);

	cout << "vkWaitForFences inFlightFences_Left" << endl;

	// 2. 获取交换链图像 - 使用当前帧的信号量
	uint32_t imageIndex;
	VkResult result = vkAcquireNextImageKHR(device, swapChain, UINT64_MAX, imageAvailableSemaphores_Left, VK_NULL_HANDLE, &imageIndex);

	cout << "vkAcquireNextImageKHR set imageAvailableSemaphores_Left ImageIndex:" << to_string(imageIndex) << endl;

	if (result != VK_SUCCESS) {
		throw std::runtime_error("failed to acquire swap chain image!");
	}

	if (imageIndex == 0)
	{
		// 3. 检查该图像是否正在被之前的帧使用
		if (imagesInFlight_Left != VK_NULL_HANDLE) {
			cout << "vkWaitForFences imagesInFlight_Left ImageIndex:" << to_string(imageIndex) << endl;
			vkWaitForFences(device, 1, &imagesInFlight_Left, VK_TRUE, UINT64_MAX);
		}
		else
		{
			cout << "imagesInFlight_Left is NULL" << endl;
		}

		cout << "imagesInFlight_Left = inFlightFences_Left ImageIndex:" << to_string(imageIndex) << endl;
		// 标记该图像正在被当前帧使用
		imagesInFlight_Left = inFlightFences_Left;
	}
	else
	{
		// 3. 检查该图像是否正在被之前的帧使用
		if (imagesInFlight_Right != VK_NULL_HANDLE) {
			cout << "vkWaitForFences imagesInFlight_Right ImageIndex:" << to_string(imageIndex) << endl;
			vkWaitForFences(device, 1, &imagesInFlight_Right, VK_TRUE, UINT64_MAX);
		}
		cout << "imagesInFlight_Right = inFlightFences_Left ImageIndex:" << to_string(imageIndex) << endl;
		imagesInFlight_Right = inFlightFences_Left;
	}

	cout << "vkResetFences inFlightFences_Left" << endl;
	// 4. 重置栅栏
	vkResetFences(device, 1, &inFlightFences_Left);

	cout << "Process commandBuffers_Left" << endl;
	// 5. 记录命令缓冲区
	vkResetCommandBuffer(commandBuffers_Left, 0);
	recordCommandBuffer(commandBuffers_Left, imageIndex);

	// 6. 提交命令缓冲区
	VkSubmitInfo submitInfo{};
	submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;

	// 等待图像获取完成
	VkSemaphore waitSemaphores[] = { imageAvailableSemaphores_Left };
	VkPipelineStageFlags waitStages[] = { VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT };
	submitInfo.waitSemaphoreCount = 1;
	submitInfo.pWaitSemaphores = waitSemaphores;
	submitInfo.pWaitDstStageMask = waitStages;

	submitInfo.commandBufferCount = 1;
	submitInfo.pCommandBuffers = &commandBuffers_Left;
	VkSemaphore signalSemaphores[1];
	if (imageIndex == 0)
	{
		cout << "renderFinishedSemaphores_Left ImageIndex:" << to_string(imageIndex) << endl;
		// 使用对应图像的渲染完成信号量
		signalSemaphores[0] = { renderFinishedSemaphores_Left };
		
	}
	else
	{
		cout << "renderFinishedSemaphores_Right ImageIndex:" << to_string(imageIndex) << endl;
		// 使用对应图像的渲染完成信号量
		signalSemaphores[0] = { renderFinishedSemaphores_Right };
	}
	submitInfo.signalSemaphoreCount = 1;
	submitInfo.pSignalSemaphores = signalSemaphores;

	cout << "vkQueueSubmit inFlightFences_Left" << endl;
	if (vkQueueSubmit(graphicsQueue, 1, &submitInfo, inFlightFences_Left) != VK_SUCCESS) {
		throw std::runtime_error("failed to submit draw command buffer!");
	}

	// 7. 呈现图像
	VkPresentInfoKHR presentInfo{};
	presentInfo.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
	presentInfo.waitSemaphoreCount = 1;
	presentInfo.pWaitSemaphores = signalSemaphores; // 等待对应图像的渲染完成信号量

	VkSwapchainKHR swapChains[] = { swapChain };
	presentInfo.swapchainCount = 1;
	presentInfo.pSwapchains = swapChains;
	presentInfo.pImageIndices = &imageIndex;

	cout << "Present Left \n" << endl;
	result = vkQueuePresentKHR(presentQueue, &presentInfo);

	if (result != VK_SUCCESS) {
		throw std::runtime_error("failed to present swap chain image!");
	}

}

void Application::drawRight()
{
	cout << "call drawRight     curFrame:" << to_string(currentFrame) << endl;
	// 1. 等待前一帧完成
	vkWaitForFences(device, 1, &inFlightFences_Right, VK_TRUE, UINT64_MAX);

	cout << "vkWaitForFences inFlightFences_Right" << endl;

	// 2. 获取交换链图像 - 使用当前帧的信号量
	uint32_t imageIndex;
	VkResult result = vkAcquireNextImageKHR(device, swapChain, UINT64_MAX, imageAvailableSemaphores_Right, VK_NULL_HANDLE, &imageIndex);

	cout << "vkAcquireNextImageKHR set imageAvailableSemaphores_Right ImageIndex:" << to_string(imageIndex) << endl;

	if (result != VK_SUCCESS) {
		throw std::runtime_error("failed to acquire swap chain image!");
	}

	if (imageIndex == 0)
	{
		// 3. 检查该图像是否正在被之前的帧使用
		if (imagesInFlight_Left != VK_NULL_HANDLE) {
			cout << "vkWaitForFences imagesInFlight_Left ImageIndex:0" << endl;
			vkWaitForFences(device, 1, &imagesInFlight_Left, VK_TRUE, UINT64_MAX);
		}
		cout << "imagesInFlight_Left = inFlightFences_Right ImageIndex:0" << endl;
		// 标记该图像正在被当前帧使用
		imagesInFlight_Left = inFlightFences_Right;
	}
	else
	{
		// 3. 检查该图像是否正在被之前的帧使用
		if (imagesInFlight_Right != VK_NULL_HANDLE) {
			cout << "vkWaitForFences imagesInFlight_Right ImageIndex:1" << endl;
			vkWaitForFences(device, 1, &imagesInFlight_Right, VK_TRUE, UINT64_MAX);
		}
		else {
			cout << "imagesInFlight_Right is NULL" << endl;
		}
		cout << "imagesInFlight_Right = inFlightFences_Right ImageIndex:1" << endl;
		imagesInFlight_Right = inFlightFences_Right;
	}

	cout << "vkResetFences inFlightFences_Right" << endl;
	// 4. 重置栅栏
	vkResetFences(device, 1, &inFlightFences_Right);

	cout << "Process commandBuffers_Right" << endl;
	// 5. 记录命令缓冲区
	vkResetCommandBuffer(commandBuffers_Right, 0);
	recordCommandBuffer(commandBuffers_Right, imageIndex);

	// 6. 提交命令缓冲区
	VkSubmitInfo submitInfo{};
	submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;

	// 等待图像获取完成
	VkSemaphore waitSemaphores[] = { imageAvailableSemaphores_Right };
	VkPipelineStageFlags waitStages[] = { VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT };
	submitInfo.waitSemaphoreCount = 1;
	submitInfo.pWaitSemaphores = waitSemaphores;
	submitInfo.pWaitDstStageMask = waitStages;

	submitInfo.commandBufferCount = 1;
	submitInfo.pCommandBuffers = &commandBuffers_Right;
	VkSemaphore signalSemaphores[1];
	if (imageIndex == 0)
	{
		cout << "renderFinishedSemaphores_Left ImageIndex:0" << endl;
		// 使用对应图像的渲染完成信号量
		signalSemaphores[0] = { renderFinishedSemaphores_Left };

	}
	else
	{
		cout << "renderFinishedSemaphores_Right ImageIndex:1" << endl;
		// 使用对应图像的渲染完成信号量
		signalSemaphores[0] = { renderFinishedSemaphores_Right };
	}
	submitInfo.signalSemaphoreCount = 1;
	submitInfo.pSignalSemaphores = signalSemaphores;

	cout << "vkQueueSubmit inFlightFences_Right" << endl;
	if (vkQueueSubmit(graphicsQueue, 1, &submitInfo, inFlightFences_Right) != VK_SUCCESS) {
		throw std::runtime_error("failed to submit draw command buffer!");
	}

	// 7. 呈现图像
	VkPresentInfoKHR presentInfo{};
	presentInfo.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
	presentInfo.waitSemaphoreCount = 1;
	presentInfo.pWaitSemaphores = signalSemaphores; // 等待对应图像的渲染完成信号量

	VkSwapchainKHR swapChains[] = { swapChain };
	presentInfo.swapchainCount = 1;
	presentInfo.pSwapchains = swapChains;
	presentInfo.pImageIndices = &imageIndex;

	cout << "Present Right \n" << endl;
	result = vkQueuePresentKHR(presentQueue, &presentInfo);

	if (result != VK_SUCCESS) {
		throw std::runtime_error("failed to present swap chain image!");
	}
}

void Application::drawFrame() 
{
	if (currentFrame % 2 == 0)
	{
		drawLeft();
	}
	else
	{
		drawRight();
	}
	currentFrame++;
}

void DestroyDebugUtilsMessengerEXT(VkInstance instance, VkDebugUtilsMessengerEXT debugMessenger, const VkAllocationCallbacks* pAllocator) {
	auto func = (PFN_vkDestroyDebugUtilsMessengerEXT)vkGetInstanceProcAddr(instance, "vkDestroyDebugUtilsMessengerEXT");
	if (func != nullptr) {
		func(instance, debugMessenger, pAllocator);
	}
}

void Application::cleanup() {
	if (enableValidationLayers) {
		DestroyDebugUtilsMessengerEXT(instance, debugMessenger, nullptr);
	}

	
	// 等待设备空闲，确保所有命令都完成
	vkDeviceWaitIdle(device);

	// 正确销毁所有同步对象
	vkDestroySemaphore(device, imageAvailableSemaphores_Left, nullptr);
	vkDestroySemaphore(device, renderFinishedSemaphores_Left, nullptr);
	vkDestroyFence(device, inFlightFences_Left, nullptr);

	// 正确销毁所有同步对象
	vkDestroySemaphore(device, imageAvailableSemaphores_Right, nullptr);
	vkDestroySemaphore(device, renderFinishedSemaphores_Right, nullptr);
	vkDestroyFence(device, inFlightFences_Right, nullptr);

	// 不需要手动释放commandBuffers，销毁命令池时会自动释放
	// 销毁命令池
	vkDestroyCommandPool(device, commandPool, nullptr);

	// 销毁图形管线
	vkDestroyPipeline(device, graphicsPipeline, nullptr);

	// 销毁管线布局
	vkDestroyPipelineLayout(device, pipelineLayout, nullptr);

	// 销毁渲染流程
	vkDestroyRenderPass(device, renderPass, nullptr);

	// 销毁图像视图
	for (auto imageView : swapChainImageViews) {
		vkDestroyImageView(device, imageView, nullptr);
	}

	// 销毁交换链
	vkDestroySwapchainKHR(device, swapChain, nullptr);

	// 销毁命令池
	vkDestroyCommandPool(device, commandPool, nullptr);

	// 销毁逻辑设备
	vkDestroyDevice(device, nullptr);

	// 销毁窗口表面
	vkDestroySurfaceKHR(instance, surface, nullptr);

	// 销毁 Vulkan 实例
	vkDestroyInstance(instance, nullptr);

#ifdef _WIN32
	// 销毁 GLFW 窗口
	glfwDestroyWindow(window);

	// 终止 GLFW
	glfwTerminate();
#endif
}