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