/************************************************************** switchres_wrapper.h - Switchres C wrapper API header file --------------------------------------------------------- Switchres Modeline generation engine for emulation License GPL-2.0+ Copyright 2010-2021 Chris Kennedy, Antonio Giner, Alexandre Wodarczyk, Gil Delescluse **************************************************************/ #ifdef __cplusplus extern "C" { #endif #ifdef __linux__ #include #define LIBTYPE void* #define OPENLIB(libname) dlopen((libname), RTLD_LAZY) #define LIBFUNC(libh, fn) dlsym((libh), (fn)) #define LIBERROR dlerror #define CLOSELIB(libh) dlclose((libh)) #elif defined _WIN32 #include #define LIBTYPE HINSTANCE #define OPENLIB(libname) LoadLibrary(TEXT((libname))) #define LIBFUNC(lib, fn) GetProcAddress((lib), (fn)) #define CLOSELIB(libp) FreeLibrary((libp)) #endif #ifdef _WIN32 /* * This is a trick to avoid exporting some functions thus having the binary * flagged as a virus. If switchres_wrapper.cpp is included in the compilation * LIBERROR() is just declared and not compiled. If switchres_wrapper.cpp is * not compiled, LIBERROR is defined here */ #ifndef SR_WIN32_STATIC char* LIBERROR() { DWORD errorMessageID = GetLastError(); if(errorMessageID == 0) return NULL; LPSTR messageBuffer; FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorMessageID, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)&messageBuffer, 0, NULL); SetLastError(0); static char error_msg[256] = {0}; strncpy(error_msg, messageBuffer, sizeof(error_msg)-1); LocalFree(messageBuffer); return error_msg; } #endif /* SR_WIN32_STATIC */ #ifndef SR_WIN32_STATIC #define MODULE_API __declspec(dllexport) #else #define MODULE_API #endif #else #define MODULE_API #endif /* _WIN32 */ #ifdef __linux__ #define LIBSWR "libswitchres.so" #elif _WIN32 #define LIBSWR "libswitchres.dll" #endif /* That's all the exposed data from Switchres calculation */ typedef struct MODULE_API { int width; int height; double refresh; unsigned char is_refresh_off; unsigned char is_stretched; int x_scale; int y_scale; unsigned char interlace; } sr_mode; /* Declaration of the wrapper functions */ MODULE_API void sr_init(); MODULE_API void sr_load_ini(char* config); MODULE_API void sr_deinit(); MODULE_API unsigned char sr_init_disp(const char* src); MODULE_API unsigned char sr_add_mode(int, int, double, unsigned char, sr_mode*); MODULE_API unsigned char sr_switch_to_mode(int, int, double, unsigned char, sr_mode*); MODULE_API void sr_set_monitor(const char*); MODULE_API void sr_set_rotation(unsigned char); MODULE_API void sr_set_user_mode(int, int, int); /* Logging related functions */ MODULE_API void sr_set_log_level (int); MODULE_API void sr_set_log_callback_error(void *); MODULE_API void sr_set_log_callback_info(void *); MODULE_API void sr_set_log_callback_debug(void *); /* Inspired by https://stackoverflow.com/a/1067684 */ typedef struct MODULE_API { void (*init)(void); void (*sr_sr_load_ini)(char*); void (*deinit)(void); unsigned char (*sr_init_disp)(const char*); unsigned char (*sr_add_mode)(int, int, double, unsigned char, sr_mode*); unsigned char (*sr_switch_to_mode)(int, int, double, unsigned char, sr_mode*); void (*sr_set_monitor)(const char*); void (*sr_set_rotation)(unsigned char); void (*sr_set_user_mode)(int, int, int); void (*sr_set_log_level) (int); void (*sr_set_log_callback_error)(void *); void (*sr_set_log_callback_info)(void *); void (*sr_set_log_callback_debug)(void *); } srAPI; #ifdef __cplusplus } #endif