face_sdk/vulkan/FaceApp.h

#ifndef __FaceApp_H__
#define __FaceApp_H__

#include "Application.h"
#include <functional>
#include "../third_party/vma/include/vk_mem_alloc.h"
#include <map>
#include <glm/glm.hpp>
#include <glm/gtc/matrix_transform.hpp>
#include <glm/gtc/matrix_transform.inl>
#include "nlohmann/json.hpp"
using namespace std;
using json = nlohmann::json;

struct Motion {
    string type;
    vector<string> png_names;
    string getMotionId() {
        return type;
    }
    NLOHMANN_DEFINE_TYPE_INTRUSIVE(Motion, type, png_names)
};

struct InitArg
{
    int action_fps;
    float zoom;
    //Motion motion;
    NLOHMANN_DEFINE_TYPE_INTRUSIVE(InitArg, action_fps, zoom);
};


struct PushConstants {
	float myValue;
};

using Callback = std::function<void(const std::string&)>;

class FaceApp :public Application
{
public:
    FaceApp(/* args */);
    ~FaceApp();

    struct
    {
        glm::mat4 projection;
        glm::mat4 model;
        glm::vec4 view_pos;
        float     lod_bias = 0.0f;
    } ubo_vs;

    void initVulkan() override;
	
    
    void render(VkCommandBuffer commandBuffer, long long frameTime) override;
    static FaceApp* Get() { return faceIns; }
    void update_face_vertex_buffer(float* pos, int pointCount);

    virtual bool isInited() override { return inited && faceAppInited; }
    virtual void cleanup() override;

    Texture tex_bg = {};

private:
    glm::vec3 rotation = glm::vec3();
    glm::vec3 camera_pos = glm::vec3();
private:
    static FaceApp* faceIns;
    VmaAllocator allocator = nullptr;
    bool LoadOBJ(const std::string& filename,std::vector<TextureLoadingVertexStructure>& vertices, std::vector<uint32_t>& indices);
    
    void createVmaAllocator();
    void update_uniform_buffers();

    void createVertexBuffer();
    void uploadVertexData();
    VkDescriptorPool descriptor_pool = VK_NULL_HANDLE;
    void create_face_pipelines();
    void setup_descriptor_pool();
    void setup_descriptor_set_layout();
    void setup_descriptor_set();
    void update_descriptor_set(vector<Texture>& texs);
    const bool kThick = false;

    void copyBuffer(VkBuffer srcBuffer, VkBuffer dstBuffer, VkDeviceSize size);
    VkCommandBuffer beginSingleTimeCommands();
    void endSingleTimeCommands(VkCommandBuffer commandBuffer);

    // 顶点缓冲区相关
    VkBuffer m_vertexBuffer = VK_NULL_HANDLE;
    VmaAllocation m_vertexBufferAllocation = VK_NULL_HANDLE;
    VkBuffer m_stagingBuffer = VK_NULL_HANDLE;
    VmaAllocation m_stagingBufferAllocation = VK_NULL_HANDLE;

    // 索引缓冲区相关
    VkBuffer m_indexBuffer = VK_NULL_HANDLE;
    VmaAllocation m_indexBufferAllocation = VK_NULL_HANDLE;

    // 渲染管线和描述符
    VkPipeline m_graphicsPipeline = VK_NULL_HANDLE;
    VkPipelineLayout m_pipelineLayout = VK_NULL_HANDLE;
    VkDescriptorSetLayout m_descriptorSetLayout = VK_NULL_HANDLE;
    vector<VkDescriptorSet> m_descriptor_sets;
    const uint32_t kMaxTexture = 60;
    vector<Texture> m_texs;
    vector<Texture> m_texs_next;
    vector<Texture> m_texs_ex;


	std::vector<TextureLoadingVertexStructure> obj_vertices;
	std::vector<uint32_t> obj_indices;
    std::map<int, int> obj_vertices_map;
    std::map<int, int> vertices_map_3dmax;

    std::mutex mtx_point;
    long long last_update_time;
    
    VkBuffer uniform_buffer_vs;
    VmaAllocation uniform_buffer_allocation;  // 需要这个来管理内存
    void* uniform_buffer_mapped = nullptr;    // 映射的内存指针
    void createUniformBuffer();

    
    bool faceAppInited = false;

    float myFloatValue = 1.5f;


    
    void create_pipelines_bg();
    void setup_descriptor_set_layout_bg();
    void setup_descriptor_set_bg();
    VkPipeline m_graphicsPipeline_bg = VK_NULL_HANDLE;
    VkPipelineLayout m_pipelineLayout_bg = VK_NULL_HANDLE;
    VkDescriptorSetLayout m_descriptorSetLayout_bg = VK_NULL_HANDLE;
    VkDescriptorSet       m_descriptor_set_bg = VK_NULL_HANDLE;

    
public:
    Callback _callback;
    string preReadyMotion(const std::string& json, Callback callback);
    void changeMotion(const string motion_type);
    //void changeMotion(Motion& motion);
    InitArg _initArg;
    //Motion _curMotion;
    string _curMotion_type;
    int _curMotion_png_size;
    Motion _nextMotion;
    int _nextMotionIndex;

    enum MotionState {
        ready,
        loading_next_motion,
        load_next_motion_finished,
    };

    MotionState _motionState = ready;

    int _curTexIndex = 0;
    void SetInitArg(const char* arg);

    void drawFrame(long long frameTime)override;

    void destroyTexture(VkDevice device, Texture& texture);
    void cleanupResources(VkDevice device, VmaAllocator allocator);

    bool _running = false;
};

#endif