Added a new DLT File class that implements basic payload parsing && Added a CSV export function for the DLT File class (currently in testing and not fully completed) && Added a command-line parsing entry point.

Inc/Command_Solve.hpp

@@ -0,0 +1,7 @@
+#ifndef __COMMAND_SOLVE_HPP__
+#define __COMMAND_SOLVE_HPP__
+
+// 命令行处理
+void Pre_Command_Solve(void);
+
+#endif

Inc/DLT_Utilities.hpp

@@ -0,0 +1,167 @@
+#ifndef __DLT_UTILITIES_HPP__
+#define __DLT_UTILITIES_HPP__
+
+extern "C"
+{
+#include "stdint.h"
+#include "stdio.h"
+}
+
+// DLT 类型定义
+namespace DLT_Type
+{
+#pragma pack(1) // 紧凑字节对齐
+
+    /**
+     * The structure of the DLT file storage header. This header is used before each stored DLT message.
+     */
+    typedef struct
+    {
+        char pattern[4];      /**< This pattern should be DLT0x01 */
+        uint32_t seconds;     /**< seconds since 1.1.1970 */
+        int32_t microseconds; /**< Microseconds */
+        char ecu[4];          /**< The ECU id is added, if it is not already in the DLT message itself */
+    } DltStorageHeader;
+
+    typedef struct
+    {
+        struct
+        {
+            uint8_t UEH : 1;  // Use Extended Header            1 启用扩展头        0 不启用
+            uint8_t MSBF : 1; // Most Significant Byte First    1 Payload大端序列   0 小端序列
+            uint8_t WEID : 1; // With ECU ID      (4 Byte)      1 包含ECU_ID        0 不含
+            uint8_t WSID : 1; // With Session ID  (4 Byte)      1 包含会话 ID       0 不含
+            uint8_t WTMS : 1; // With Timestamp   (4 Byte)      1 含时间戳          0 不含
+            uint8_t VERS : 3; // Version Number DLT协议版本
+
+        } htyp;       /**< This parameter contains several informations, see definitions below */
+        uint8_t mcnt; /**< The message counter is increased with each sent DLT message */
+        uint16_t len; /**< Length of the complete message, without storage header */
+    } DltStandardHeader;
+
+    /**
+     * The structure of the DLT extra header parameters. Each parameter is sent only if enabled in htyp.
+     */
+    typedef struct
+    {
+        char ecu[4];   /**< ECU id */
+        uint32_t seid; /**< Session number */
+        uint32_t tmsp; /**< Timestamp since system start in 0.1 milliseconds */
+    } DltStandardHeaderExtra;
+
+    /**
+     * The structure of the DLT extended header. This header is only sent if enabled in htyp parameter.
+     */
+    typedef struct
+    {
+        struct
+        {
+            uint8_t VERB : 1; // (Verbose) 冗余模式   1 启用        0 不启用
+            uint8_t MSTP : 3; // (Message Type)
+            uint8_t MTIN : 4; // (Message Type Info)
+        } msin;               /**< messsage info */
+        uint8_t noar;         /**< number of arguments */
+        char apid[4];         /**< application id */
+        char ctid[4];         /**< context id */
+    } DltExtendedHeader;
+
+#pragma pack(0) // 恢复字节对齐
+
+    // DLT 错误信息枚举
+    typedef enum
+    {
+        DLT_ERROR_NONE = 0,            // 无错误
+        DLT_ERROR_NULL_POINTER,        // 空指针
+        DLT_ERROR_FILE_OPEN_FAILED,    // 文件打开失败
+        DLT_ERROR_FILE_READ_FAILED,    // 文件读取失败
+        DLT_ERROR_FILE_CREATE_FAILED,  // 文件创建失败
+        DLT_ERROR_END_OF_FILE,         // 文件结尾
+        DLT_ERROR_INVALID_HEADER,      // 非法头
+        DLT_ERROR_INCOMPLETE_DATA,     // 数据不完整
+        DLT_ERROR_MEM_ALLOCATE_FAILED, // 内存分配失败
+        DLT_ERROR_MSG_LIST_EMPTY,      // 消息列表为空
+    } DLT_Err;
+
+    // DLT消息条目结构定义
+    typedef struct
+    {
+        DltStorageHeader storage_header;              // 存储头
+        DltStandardHeader standard_header;            // 标准头
+        DltStandardHeaderExtra standard_header_extra; // 标准头额外内容
+        DltExtendedHeader extendedheader;             // 扩展头
+        size_t payload_length;                        // 消息长度
+        uint8_t *payload_buffer;                      // 载荷
+    } DLT_Msg;                                        // 文件中的消息条目
+
+    // DLT消息链表节点
+    typedef struct DLT_Msg_Node_Struct
+    {
+        DLT_Msg Msg;
+        DLT_Msg_Node_Struct *p_next;
+    } DLT_Msg_Node;
+}
+
+// DLT 文件类
+class DLT_File
+{
+private:
+    FILE *p_file;           // 文件指针
+    size_t msg_count;       // 消息条目计数
+    size_t payload_max_len; // 最长载荷长度
+
+    DLT_Type::DLT_Msg_Node *Msg_List_Head; // 消息列表
+
+    /**
+     * @brief 读取dlt文件头
+     * @param Msg 读取后存储的目标结构体
+     * @return DLT_Type::DLT_Err 错误类型枚举
+     */
+    DLT_Type::DLT_Err dlt_file_read_header(DLT_Type::DLT_Msg *Msg);
+
+    /**
+     * @brief 读取dlt文件载荷
+     * @param Msg 读取后存储的目标结构体
+     * @return DLT_Type::DLT_Err 错误类型枚举
+     */
+    DLT_Type::DLT_Err dlt_file_read_payload(DLT_Type::DLT_Msg *Msg);
+
+    /**
+     * @brief 解析dlt文件
+     * @param null
+     * @return DLT_Type::DLT_Err 错误类型枚举
+     */
+    DLT_Type::DLT_Err dlt_file_parse(void);
+
+public:
+    DLT_File();  // 构造函数
+    ~DLT_File(); // 析构函数
+    /**
+     * @brief 打开DLT文件
+     * @param file_name_str 目标文件名
+     * @return DLT_Type::DLT_Err 错误类型枚举
+     */
+    DLT_Type::DLT_Err open(const char *file_name_str);
+
+    /**
+     * @brief 获取解析完成的消息列表
+     * @param p_msg_list 消息列表存入的指针
+     * @return 消息列表计数
+     */
+    size_t get_msg_list(DLT_Type::DLT_Msg_Node *(&p_msg_list));
+
+    /**
+     * @brief 导出为CSV
+     * @param file_name_str 目标文件名
+     * @return DLT_Type::DLT_Err 错误类型枚举
+     */
+    DLT_Type::DLT_Err export_to_csv(const char *file_name_str);
+
+    /**
+     * @brief 清理请求的存储并恢复初始状态
+     * @param null
+     * @return null
+     */
+    void clear(void);
+};
+
+#endif

Src/Command_Solve.cpp

@@ -0,0 +1,39 @@
+#include "Command_Solve.hpp"
+#include "DLT_Utilities.hpp"
+
+extern "C"
+{
+#include "windows.h"
+}
+
+DLT_File File;
+
+// 命令行处理
+void Pre_Command_Solve(void)
+{
+    // 获取命令行
+    int argc;
+    LPWSTR *argv;
+    argv = CommandLineToArgvW(GetCommandLineW(), &argc);
+
+    if (argc <= 1)
+        return;
+
+    DLT_Type::DLT_Err err;
+
+    int size_needed = WideCharToMultiByte(CP_UTF8, 0, argv[1], -1, NULL, 0, NULL, NULL);
+    char *strTo = (char *)malloc(size_needed);
+    WideCharToMultiByte(CP_UTF8, 0, argv[1], -1, &strTo[0], size_needed, NULL, NULL);
+
+    err = File.open(strTo);
+
+    DLT_Type::DLT_Msg_Node *p_list;
+    File.get_msg_list(p_list);
+
+    free(strTo);
+
+    err = File.export_to_csv("test.csv");
+
+    if (err == DLT_Type::DLT_ERROR_NONE)
+        return;
+}

Src/DLT_Utilities.cpp

@@ -0,0 +1,374 @@
+#include "DLT_Utilities.hpp"
+
+extern "C"
+{
+#include "stdlib.h"
+#include "string.h"
+#include "sys/time.h"
+}
+
+// 构造函数
+DLT_File::DLT_File()
+{
+    // 初始化内容
+    this->p_file = nullptr;
+    this->msg_count = 0;
+    this->payload_max_len = 0;
+    this->Msg_List_Head = nullptr;
+}
+
+// 析构函数
+DLT_File::~DLT_File()
+{
+    clear();
+}
+
+// 清理请求的存储并恢复初始状态
+void DLT_File::clear(void)
+{
+
+    if (this->Msg_List_Head == nullptr)
+        return;
+
+    // 释放分配的空间
+    while (this->Msg_List_Head != nullptr)
+    {
+        DLT_Type::DLT_Msg_Node *p_target = this->Msg_List_Head;
+        this->Msg_List_Head = this->Msg_List_Head->p_next;
+        free(p_target->Msg.payload_buffer);
+        free(p_target);
+    }
+
+    // 初始化内容
+    this->p_file = nullptr;
+    this->msg_count = 0;
+    this->payload_max_len = 0;
+    this->Msg_List_Head = nullptr;
+}
+
+DLT_Type::DLT_Err DLT_File::dlt_file_read_header(DLT_Type::DLT_Msg *Msg)
+{
+    if (Msg == nullptr)
+        return DLT_Type::DLT_ERROR_NULL_POINTER;
+
+    // 存储头
+    {
+
+        // 读取存储头
+        if (fread(&(Msg->storage_header), sizeof(Msg->storage_header), 1, this->p_file) != 1)
+        {
+            if (feof(this->p_file))
+                return DLT_Type::DLT_ERROR_END_OF_FILE;
+            else
+                return DLT_Type::DLT_ERROR_FILE_READ_FAILED;
+        }
+
+        // 检查存储头
+        if (memcmp(Msg->storage_header.pattern, "DLT\x01", 4))
+            return DLT_Type::DLT_ERROR_INVALID_HEADER;
+    }
+
+    // 标准头
+    {
+        // 读取标准头
+        if (fread(&(Msg->standard_header), sizeof(Msg->standard_header), 1, this->p_file) != 1)
+        {
+            if (feof(this->p_file))
+                return DLT_Type::DLT_ERROR_INCOMPLETE_DATA;
+            else
+                return DLT_Type::DLT_ERROR_FILE_READ_FAILED;
+        }
+
+        // 反向拼接len字段
+        // [PRS_Dlt_00091] ⌈The Standard Header and the Extended Header shall be in big endian format (MSB first).⌋ (RS_LT_00016,RS_LT_00013)
+        // DLT标准头是大端序，与小端序存储的uint16正好相反，所以需要反向
+        {
+            uint16_t len_swap;
+            *((uint8_t *)&len_swap) = *(((uint8_t *)&Msg->standard_header.len) + 1);
+            *(((uint8_t *)&len_swap) + 1) = *((uint8_t *)&Msg->standard_header.len);
+            Msg->standard_header.len = len_swap;
+        }
+    }
+
+    // 消息头长度统计
+    size_t msg_header_len = sizeof(Msg->standard_header);
+
+    // 标准头扩展部分
+    {
+        // 含有额外的ECU ID
+        if (Msg->standard_header.htyp.WEID)
+        {
+            msg_header_len += sizeof(Msg->standard_header_extra.ecu);
+
+            if (fread(&(Msg->standard_header_extra.ecu), sizeof(Msg->standard_header_extra.ecu), 1, this->p_file) != 1)
+            {
+                if (feof(this->p_file))
+                    return DLT_Type::DLT_ERROR_INCOMPLETE_DATA;
+                else
+                    return DLT_Type::DLT_ERROR_FILE_READ_FAILED;
+            }
+        }
+
+        // 含有额外的 Session ID (会话ID)
+        if (Msg->standard_header.htyp.WSID)
+        {
+            msg_header_len += sizeof(Msg->standard_header_extra.seid);
+
+            if (fread(&(Msg->standard_header_extra.seid), sizeof(Msg->standard_header_extra.seid), 1, this->p_file) != 1)
+            {
+                if (feof(this->p_file))
+                    return DLT_Type::DLT_ERROR_INCOMPLETE_DATA;
+                else
+                    return DLT_Type::DLT_ERROR_FILE_READ_FAILED;
+            }
+
+            // 反向拼接Session ID字段
+            // [PRS_Dlt_00091] ⌈The Standard Header and the Extended Header shall be in big endian format (MSB first).⌋ (RS_LT_00016,RS_LT_00013)
+            {
+                uint32_t data_swap;
+
+                *((uint8_t *)&data_swap) = *(((uint8_t *)&Msg->standard_header_extra.seid) + 3);
+                *(((uint8_t *)&data_swap) + 1) = *(((uint8_t *)&Msg->standard_header_extra.seid) + 2);
+                *(((uint8_t *)&data_swap) + 2) = *(((uint8_t *)&Msg->standard_header_extra.seid) + 1);
+                *(((uint8_t *)&data_swap) + 3) = *((uint8_t *)&Msg->standard_header_extra.seid);
+
+                Msg->standard_header_extra.seid = data_swap;
+            }
+        }
+
+        // 含有额外的 timestamp (0.1ms 自系统启动后的时间计数)
+        if (Msg->standard_header.htyp.WSID)
+        {
+            msg_header_len += sizeof(Msg->standard_header_extra.tmsp);
+
+            if (fread(&(Msg->standard_header_extra.tmsp), sizeof(Msg->standard_header_extra.tmsp), 1, this->p_file) != 1)
+            {
+                if (feof(this->p_file))
+                    return DLT_Type::DLT_ERROR_INCOMPLETE_DATA;
+                else
+                    return DLT_Type::DLT_ERROR_FILE_READ_FAILED;
+            }
+
+            // 反向拼接Session ID字段
+            // [PRS_Dlt_00091] ⌈The Standard Header and the Extended Header shall be in big endian format (MSB first).⌋ (RS_LT_00016,RS_LT_00013)
+            {
+                uint32_t data_swap;
+
+                *((uint8_t *)&data_swap) = *(((uint8_t *)&Msg->standard_header_extra.tmsp) + 3);
+                *(((uint8_t *)&data_swap) + 1) = *(((uint8_t *)&Msg->standard_header_extra.tmsp) + 2);
+                *(((uint8_t *)&data_swap) + 2) = *(((uint8_t *)&Msg->standard_header_extra.tmsp) + 1);
+                *(((uint8_t *)&data_swap) + 3) = *((uint8_t *)&Msg->standard_header_extra.tmsp);
+
+                Msg->standard_header_extra.tmsp = data_swap;
+            }
+        }
+    }
+
+    // 扩展头读取
+    if (Msg->standard_header.htyp.UEH)
+    {
+        msg_header_len += sizeof(Msg->extendedheader);
+
+        // 读取标扩展头
+        if (fread(&(Msg->extendedheader), sizeof(Msg->extendedheader), 1, this->p_file) != 1)
+        {
+            if (feof(this->p_file))
+                return DLT_Type::DLT_ERROR_INCOMPLETE_DATA;
+            else
+                return DLT_Type::DLT_ERROR_FILE_READ_FAILED;
+        }
+    }
+
+    // 计算Payload长度
+    Msg->payload_length = Msg->standard_header.len - msg_header_len;
+
+    // 统计最长长度
+    if (Msg->payload_length > this->payload_max_len)
+        this->payload_max_len = Msg->payload_length;
+
+    return DLT_Type::DLT_ERROR_NONE;
+}
+
+DLT_Type::DLT_Err DLT_File::dlt_file_read_payload(DLT_Type::DLT_Msg *Msg)
+{
+    if (Msg == nullptr)
+        return DLT_Type::DLT_ERROR_NULL_POINTER;
+
+    // 读取Payload
+    Msg->payload_buffer = (uint8_t *)malloc(Msg->payload_length);
+    if (Msg->payload_buffer == nullptr)
+        return DLT_Type::DLT_ERROR_MEM_ALLOCATE_FAILED;
+
+    if (fread(Msg->payload_buffer, Msg->payload_length, 1, this->p_file) != 1)
+    {
+        free(Msg->payload_buffer);
+        Msg->payload_buffer = nullptr;
+
+        if (feof(this->p_file))
+            return DLT_Type::DLT_ERROR_INCOMPLETE_DATA;
+        else
+            return DLT_Type::DLT_ERROR_FILE_READ_FAILED;
+    }
+
+    return ::DLT_Type::DLT_ERROR_NONE;
+}
+
+DLT_Type::DLT_Err DLT_File::dlt_file_parse(void)
+{
+    DLT_Type::DLT_Msg_Node *p_list_end = nullptr;
+
+    DLT_Type::DLT_Err err = DLT_Type::DLT_ERROR_NONE;
+    while (1)
+    {
+        DLT_Type::DLT_Msg Msg;
+
+        err = dlt_file_read_header(&Msg);
+        if (err != DLT_Type::DLT_ERROR_NONE)
+        {
+            if (err == DLT_Type::DLT_ERROR_END_OF_FILE)
+                break;
+            return err;
+        }
+        err = dlt_file_read_payload(&Msg);
+        if (err != DLT_Type::DLT_ERROR_NONE)
+            return err;
+
+        if (this->Msg_List_Head == nullptr)
+        {
+            this->Msg_List_Head = (DLT_Type::DLT_Msg_Node *)malloc(sizeof(DLT_Type::DLT_Msg_Node));
+            if (this->Msg_List_Head == nullptr)
+                return DLT_Type::DLT_ERROR_MEM_ALLOCATE_FAILED;
+            this->Msg_List_Head->p_next = nullptr;
+            this->Msg_List_Head->Msg = Msg;
+
+            p_list_end = Msg_List_Head;
+        }
+        else
+        {
+            DLT_Type::DLT_Msg_Node *p_target = (DLT_Type::DLT_Msg_Node *)malloc(sizeof(DLT_Type::DLT_Msg_Node));
+            if (p_target == nullptr)
+                return DLT_Type::DLT_ERROR_MEM_ALLOCATE_FAILED;
+            p_target->p_next = nullptr;
+            p_target->Msg = Msg;
+
+            p_list_end->p_next = p_target;
+            p_list_end = p_target;
+        }
+
+        this->msg_count++;
+    }
+
+    return DLT_Type::DLT_ERROR_NONE;
+}
+
+DLT_Type::DLT_Err DLT_File::open(const char *file_name_str)
+{
+    // 打开文件
+    this->p_file = fopen(file_name_str, "rb");
+    if (this->p_file == nullptr)
+        return DLT_Type::DLT_ERROR_FILE_OPEN_FAILED;
+
+    // 求解文件
+    return dlt_file_parse();
+}
+
+size_t DLT_File::get_msg_list(DLT_Type::DLT_Msg_Node *(&p_msg_list))
+{
+    if (this->msg_count != 0)
+        p_msg_list = this->Msg_List_Head;
+    else
+        p_msg_list = nullptr;
+
+    return this->msg_count;
+}
+
+DLT_Type::DLT_Err DLT_File::export_to_csv(const char *file_name_str)
+{
+    FILE *p_file = fopen(file_name_str, "wb");
+    if (p_file == nullptr)
+        return DLT_Type::DLT_ERROR_FILE_CREATE_FAILED;
+
+    DLT_Type::DLT_Msg_Node *p_msg = this->Msg_List_Head;
+
+    // 打印首行
+    {
+        fprintf(p_file, "Index,Date,Time,Timestamp,Count,ECU ID,Application ID,Context ID ,Session ID,Type,Sub Type,Mode,#Args,Payload,");
+
+        for (size_t count = 0; count < this->payload_max_len; count++)
+            fprintf(p_file, "B%d,", count);
+        fseek(p_file, -1, SEEK_CUR);
+        fprintf(p_file, "\r\n");
+    }
+
+    // 遍历每行数据
+    for (size_t line_count = 0; line_count < this->msg_count; line_count++)
+    {
+
+        // 输出索引号
+        fprintf(p_file, "%d,", line_count);
+
+        // 输出日期和时间
+        {
+            time_t timestamp = (time_t)p_msg->Msg.storage_header.seconds;
+            struct tm *time_struct = localtime(&timestamp);
+            char time_str[100] = {'\0'};
+            // 格式化为 "YY/MM/DD 时区"
+            strftime(time_str, sizeof(time_str), "%Y/%m/%d UTC%z", time_struct);
+            fprintf(p_file, "%s,", time_str);
+
+            // 格式化为 "HH:MM:SS"
+            strftime(time_str, sizeof(time_str), "%H:%M:%S", time_struct);
+            fprintf(p_file, "T-%s.%d,", time_str, p_msg->Msg.storage_header.microseconds);
+        }
+
+        // 输出头附加信息
+        {
+            // 存在扩展时间戳
+            if (p_msg->Msg.standard_header.htyp.WTMS)
+            {
+                /**< Timestamp since system start in 0.1 milliseconds */
+                char time_str[20];
+                sprintf(time_str, "%d", p_msg->Msg.standard_header_extra.tmsp);
+                char *p_sec_end = time_str + strlen(time_str) - 4;
+
+                // 输出秒
+                for (char *p = time_str; p < p_sec_end; p++)
+                    fputc(*p, p_file);
+                // 输出剩余的时间
+                fprintf(p_file, ".%s,", p_sec_end);
+            }
+            else
+                fprintf(p_file, "N/A,");
+
+            // 消息计数
+            fprintf(p_file, "%d,", p_msg->Msg.standard_header.mcnt);
+
+            // 存在扩展ECU ID
+            if (p_msg->Msg.standard_header.htyp.WEID)
+                fprintf(p_file, "%.4s,", p_msg->Msg.standard_header_extra.ecu);
+            else
+                fprintf(p_file, "%.4s,", p_msg->Msg.storage_header.ecu);
+
+            // 存在扩展头
+            if (p_msg->Msg.standard_header.htyp.UEH)
+            {
+                fprintf(p_file, "%.4s,", p_msg->Msg.extendedheader.apid);
+                fprintf(p_file, "%.4s,", p_msg->Msg.extendedheader.ctid);
+
+                if (p_msg->Msg.standard_header.htyp.WSID)
+                    fprintf(p_file, "%d,", p_msg->Msg.standard_header_extra.seid);
+                else
+                    fprintf(p_file, "N/A,");
+            }
+        }
+
+        for (size_t count = 0; count < p_msg->Msg.payload_length; count++)
+            fprintf(p_file, "%0X,", p_msg->Msg.payload_buffer[count]);
+
+        p_msg = p_msg->p_next;
+        fseek(p_file, -1, SEEK_CUR);
+        fprintf(p_file, "\r\n");
+    }
+
+    return DLT_Type::DLT_ERROR_NONE;
+}

Src/Main.cpp

@@ -18,6 +18,7 @@ extern "C"
 #include "Config.hpp"           // 配置文件
 #include "Global_Variables.hpp" // 全局变量相关
 #include "UI_Layout.hpp"        // UI布局相关
+#include "Command_Solve.hpp"    // 命令处理相关
 
 // 辅助函数声明
 bool CreateDeviceD3D(HWND hWnd); // 创建 Direct 3D 设备
@@ -34,6 +35,9 @@ extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg
 // 入口主函数
 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
 {
+    // 命令行前置处理
+    Pre_Command_Solve();
+
     // 启用DPI响应并获取主显示器分辨率
     ImGui_ImplWin32_EnableDpiAwareness();
     float main_scale = ImGui_ImplWin32_GetDpiScaleForMonitor(MonitorFromPoint(POINT{0, 0}, MONITOR_DEFAULTTOPRIMARY));