[Vulkan] Vulkan Surface

// MIT License
//
// Copyright (c) 2024 Daemyung Jang
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
 
#include <cassert>
#include <array>
#include <vector>
 
#include "VkRenderer.h"
#include "VkUtil.h"
#include "AndroidOut.h"
 
using namespace std;
 
VkRenderer::VkRenderer() {
    // ================================================================================
    // 1. VkInstance 생성
    // ================================================================================
    // VkApplicationInfo 구조체 정의
    VkApplicationInfo applicationInfo{
        .sType = VK_STRUCTURE_TYPE_APPLICATION_INFO,
        .pApplicationName = "Practice Vulkan",
        .applicationVersion = VK_MAKE_API_VERSION(0, 0, 1, 0),
        .apiVersion = VK_MAKE_API_VERSION(0, 1, 3, 0)
    };
 
    // 사용할 수 있는 레이어를 얻어온다.
    uint32_t instanceLayerCount;
    VK_CHECK_ERROR(vkEnumerateInstanceLayerProperties(&instanceLayerCount, nullptr));
 
    vector<VkLayerProperties> instanceLayerProperties(instanceLayerCount);
    VK_CHECK_ERROR(vkEnumerateInstanceLayerProperties(&instanceLayerCount,
                                                      instanceLayerProperties.data()));
 
    // 활성화할 레이어의 이름을 배열로 만든다.
    vector<const char*> instanceLayerNames;
    for (const auto &layerProperty : instanceLayerProperties) {
        instanceLayerNames.push_back(layerProperty.layerName);
    }
 
    uint32_t instanceExtensionCount; // 사용 가능한 InstanceExtension 개수
    VK_CHECK_ERROR(vkEnumerateInstanceExtensionProperties(nullptr,
                                                          &instanceExtensionCount,
                                                          nullptr));
 
    vector<VkExtensionProperties> instanceExtensionProperties(instanceExtensionCount);
    VK_CHECK_ERROR(vkEnumerateInstanceExtensionProperties(nullptr,
                                                          &instanceExtensionCount,
                                                          instanceExtensionProperties.data()));
 
    vector<const char *> instanceExtensionNames; // instanceExtensionName을 담는 배열
    for (const auto &properties: instanceExtensionProperties) {
        if (properties.extensionName == string("VK_KHR_surface") ||
            properties.extensionName == string("VK_KHR_android_surface")) {
            instanceExtensionNames.push_back(properties.extensionName);
        }
    }
    assert(instanceExtensionNames.size() == 2); // 반드시 2개의 이름이 필요하기 때문에 확인
 
    // sType: 구조체의 타입, pApplicationInfo: 어플리케이션의 이름
    // enabledLayerCount, ppEnableLayerNames: 사용할 레이어의 정보를 정의
    VkInstanceCreateInfo instanceCreateInfo{
        .sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
        .pApplicationInfo = &applicationInfo,
        .enabledLayerCount = static_cast<uint32_t>(instanceLayerNames.size()),
        .ppEnabledLayerNames = instanceLayerNames.data(),
        .enabledExtensionCount = static_cast<uint32_t>(instanceExtensionNames.size()),
        .ppEnabledExtensionNames = instanceExtensionNames.data()
    };
 
    // vkCreateInstance로 인스턴스 생성. 생성된 인스턴스가 mInstance에 쓰여진다.
    VK_CHECK_ERROR(vkCreateInstance(&instanceCreateInfo, nullptr, &mInstance));
 
 
    // ================================================================================
    // 2. VkPhysicalDevice 선택
    // ================================================================================
    uint32_t physicalDeviceCount;
    VK_CHECK_ERROR(vkEnumeratePhysicalDevices(mInstance, &physicalDeviceCount, nullptr));
 
    vector<VkPhysicalDevice> physicalDevices(physicalDeviceCount);
    VK_CHECK_ERROR(vkEnumeratePhysicalDevices(mInstance, &physicalDeviceCount, physicalDevices.data()));
 
    // 간단한 예제를 위해 첫 번째 VkPhysicalDevice를 사용
    mPhysicalDevice = physicalDevices[0];
 
    VkPhysicalDeviceProperties physicalDeviceProperties; // 이 구조체 안에 GPU에 필요한 모든 정보가 있다.
    vkGetPhysicalDeviceProperties(mPhysicalDevice, &physicalDeviceProperties);
 
    aout << "Selected Physical Device Information ↓" << endl;
    aout << setw(16) << left << " - Device Name: "
         << string_view(physicalDeviceProperties.deviceName) << endl;
    aout << setw(16) << left << " - Device Type: "
         << vkToString(physicalDeviceProperties.deviceType) << endl;
    aout << std::hex;
    aout << setw(16) << left << " - Device ID: " << physicalDeviceProperties.deviceID << endl;
    aout << setw(16) << left << " - Vendor ID: " << physicalDeviceProperties.vendorID << endl;
    aout << std::dec;
    aout << setw(16) << left << " - API Version: "
         << VK_API_VERSION_MAJOR(physicalDeviceProperties.apiVersion) << "."
         << VK_API_VERSION_MINOR(physicalDeviceProperties.apiVersion);
    aout << setw(16) << left << " - Driver Version: "
         << VK_API_VERSION_MAJOR(physicalDeviceProperties.driverVersion) << "."
         << VK_API_VERSION_MINOR(physicalDeviceProperties.driverVersion);
 
 
    // ================================================================================
    // 3. VkDevice 생성
    // ================================================================================
    uint32_t queueFamilyPropertiesCount;
 
    //---------------------------------------------------------------------------------
    //** queueFamily 속성을 조회
    // 사용 가능한 queueFamily의 수(=queueFamilyPropertiesCount)를 얻어온다.
    vkGetPhysicalDeviceQueueFamilyProperties(mPhysicalDevice, &queueFamilyPropertiesCount, nullptr);
 
    vector<VkQueueFamilyProperties> queueFamilyProperties(queueFamilyPropertiesCount);
    // 해당 queueFamily들의 속성을 배열에 얻어온다.
    vkGetPhysicalDeviceQueueFamilyProperties(mPhysicalDevice, &queueFamilyPropertiesCount, queueFamilyProperties.data());
    //---------------------------------------------------------------------------------
 
    // 특정 queueFamilyProperties가 VK_QUEUE_GRAPHICS_BIT를 지원하는지 확인.
    // 지원하는 queueFamilyProperties를 찾으면 break. queueFamily에 대한 정보는 mQueueFamilyIndex에 저장.
    for (mQueueFamilyIndex = 0;
         mQueueFamilyIndex != queueFamilyPropertiesCount; ++mQueueFamilyIndex) {
        if (queueFamilyProperties[mQueueFamilyIndex].queueFlags & VK_QUEUE_GRAPHICS_BIT) {
            break;
        }
    }
 
    // 생성할 큐를 정의
    const vector<float> queuePriorities{1.0};
    VkDeviceQueueCreateInfo deviceQueueCreateInfo{
            .sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO,
            .queueFamilyIndex = mQueueFamilyIndex,      // queueFamilyIndex
            .queueCount = 1,                            // 생성할 큐의 개수
            .pQueuePriorities = queuePriorities.data()  // 큐의 우선순위
    };
 
    uint32_t deviceExtensionCount; // 사용 가능한 deviceExtension 개수
    VK_CHECK_ERROR(vkEnumerateDeviceExtensionProperties(mPhysicalDevice,
                                                        nullptr,
                                                        &deviceExtensionCount,
                                                        nullptr));
 
    vector<VkExtensionProperties> deviceExtensionProperties(deviceExtensionCount);
    VK_CHECK_ERROR(vkEnumerateDeviceExtensionProperties(mPhysicalDevice,
                                                        nullptr,
                                                        &deviceExtensionCount,
                                                        deviceExtensionProperties.data()));
 
    vector<const char *> deviceExtensionNames;
    for (const auto &properties: deviceExtensionProperties) {
        if (properties.extensionName == string("VK_KHR_swapchain")) {
            deviceExtensionNames.push_back(properties.extensionName);
        }
    }
    assert(deviceExtensionNames.size() == 1); // VK_KHR_swapchain이 반드시 필요하기 때문에 확인
 
    // 생성할 Device 정의
    VkDeviceCreateInfo deviceCreateInfo{
            .sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,
            .queueCreateInfoCount = 1,                   // 큐의 개수
            .pQueueCreateInfos = &deviceQueueCreateInfo, // 생성할 큐의 정보
            .enabledExtensionCount = static_cast<uint32_t>(deviceExtensionNames.size()),
            .ppEnabledExtensionNames = deviceExtensionNames.data() // 활성화하려는 deviceExtension들을 넘겨줌
    };
 
    // vkCreateDevice를 호출하여 Device 생성(= mDevice 생성)
    VK_CHECK_ERROR(vkCreateDevice(mPhysicalDevice, &deviceCreateInfo, nullptr, &mDevice));
    // 생성된 Device(= mDevice)로부터 큐를 vkGetDeviceQueue를 호출하여 얻어온다.
    vkGetDeviceQueue(mDevice, mQueueFamilyIndex, 0, &mQueue);
 
 
    // ================================================================================
    // 4. VkSurface 생성
    // ================================================================================
    VkAndroidSurfaceCreateInfoKHR surfaceCreateInfo{
            .sType = VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR,
            .window = window
    };
 
    // surface 생성.
    VK_CHECK_ERROR(vkCreateAndroidSurfaceKHR(mInstance, &surfaceCreateInfo, nullptr, &mSurface));
 
    VkBool32 supported; // surface 지원 여부
    VK_CHECK_ERROR(vkGetPhysicalDeviceSurfaceSupportKHR(mPhysicalDevice,
                                                        mQueueFamilyIndex,
                                                        mSurface,
                                                        &supported)); // 지원 여부를 받아옴.
    assert(supported);
}
 
VkRenderer::~VkRenderer() {
    vkDestroySurfaceKHR(mInstance, mSurface, nullptr);
    vkDestroyDevice(mDevice, nullptr); // Device 파괴. queue의 경우 Device를 생성하면서 생겼기 때문에 따로 파괴하는 API가 존재하지 않는다.
    vkDestroyInstance(mInstance, nullptr);
}