Code/Engine/Foundation/Platform/Posix/ApplicationEntryPoint_Posix.h - dev - redgpu/ezEngine

Code/Engine/Foundation/Platform/Posix/ApplicationEntryPoint_Posix.h
28 строк3 KB
Jan Krassnigg
Refactor of platform specific includes (#1414)
23 окт 2024, 10:09
23 окт 2024, 10:0974f6d97
#pragma once

/// \file

/// \brief This macro allows for easy creation of application entry points (since they can't be placed in DLLs)
///
/// Just use the macro in a cpp file of your application and supply your app class (must be derived from ezApplication).
/// The additional (optional) parameters are passed to the constructor of your app class.
#define EZ_APPLICATION_ENTRY_POINT(AppClass, ...)                                                                        \
  alignas(alignof(AppClass)) static char appBuffer[sizeof(AppClass)]; /* Not on the stack to cope with smaller stacks */ \
                                                                                                                         \
  EZ_APPLICATION_ENTRY_POINT_CODE_INJECTION                                                                              \
  int main(int argc, const char** argv)                                                                                  \
  {                                                                                                                      \
    AppClass* pApp = new (appBuffer) AppClass(__VA_ARGS__);                                                              \
    pApp->SetCommandLineArguments((ezUInt32)argc, argv);                                                                 \
    ezRun(pApp); /* Life cycle & run method calling */                                                                   \
    const int iReturnCode = pApp->GetReturnCode();                                                                       \
    if (iReturnCode != 0)                                                                                                \
    {                                                                                                                    \
      const char* szReturnCode = pApp->TranslateReturnCode();                                                            \
      if (szReturnCode != nullptr && szReturnCode[0] != '\0')                                                            \
        ezLog::Printf("Return Code: '%s'\n", szReturnCode);                                                              \
    }                                                                                                                    \
    pApp->~AppClass();                                                                                                   \
    memset((void*)pApp, 0, sizeof(AppClass));                                                                            \
    return iReturnCode;                                                                                                  \
  }