#ifndef LIBRETRO_H__ #define LIBRETRO_H__ #include #include #ifdef __cplusplus extern "C" { #else #include #endif #define RETRO_API_VERSION 1 #define RETRO_DEVICE_MASK 0xff #define RETRO_DEVICE_NONE 0 #define RETRO_DEVICE_JOYPAD 1 #define RETRO_DEVICE_MOUSE 2 #define RETRO_DEVICE_KEYBOARD 3 #define RETRO_DEVICE_LIGHTGUN 4 #define RETRO_DEVICE_JOYPAD_MULTITAP ((1 << 8) | RETRO_DEVICE_JOYPAD) #define RETRO_DEVICE_LIGHTGUN_SUPER_SCOPE ((1 << 8) | RETRO_DEVICE_LIGHTGUN) #define RETRO_DEVICE_LIGHTGUN_JUSTIFIER ((2 << 8) | RETRO_DEVICE_LIGHTGUN) #define RETRO_DEVICE_LIGHTGUN_JUSTIFIERS ((3 << 8) | RETRO_DEVICE_LIGHTGUN) #define RETRO_DEVICE_ID_JOYPAD_B 0 #define RETRO_DEVICE_ID_JOYPAD_Y 1 #define RETRO_DEVICE_ID_JOYPAD_SELECT 2 #define RETRO_DEVICE_ID_JOYPAD_START 3 #define RETRO_DEVICE_ID_JOYPAD_UP 4 #define RETRO_DEVICE_ID_JOYPAD_DOWN 5 #define RETRO_DEVICE_ID_JOYPAD_LEFT 6 #define RETRO_DEVICE_ID_JOYPAD_RIGHT 7 #define RETRO_DEVICE_ID_JOYPAD_A 8 #define RETRO_DEVICE_ID_JOYPAD_X 9 #define RETRO_DEVICE_ID_JOYPAD_L 10 #define RETRO_DEVICE_ID_JOYPAD_R 11 #define RETRO_DEVICE_ID_MOUSE_X 0 #define RETRO_DEVICE_ID_MOUSE_Y 1 #define RETRO_DEVICE_ID_MOUSE_LEFT 2 #define RETRO_DEVICE_ID_MOUSE_RIGHT 3 #define RETRO_DEVICE_ID_LIGHTGUN_X 0 #define RETRO_DEVICE_ID_LIGHTGUN_Y 1 #define RETRO_DEVICE_ID_LIGHTGUN_TRIGGER 2 #define RETRO_DEVICE_ID_LIGHTGUN_CURSOR 3 #define RETRO_DEVICE_ID_LIGHTGUN_TURBO 4 #define RETRO_DEVICE_ID_LIGHTGUN_PAUSE 5 #define RETRO_REGION_NTSC 0 #define RETRO_REGION_PAL 1 #define RETRO_MEMORY_MASK 0xff #define RETRO_MEMORY_SAVE_RAM 0 #define RETRO_MEMORY_RTC 1 #define RETRO_MEMORY_SYSTEM_RAM 2 #define RETRO_MEMORY_SNES_BSX_RAM ((1 << 8) | RETRO_MEMORY_SAVE_RAM) #define RETRO_MEMORY_SNES_BSX_PRAM ((2 << 8) | RETRO_MEMORY_SAVE_RAM) #define RETRO_MEMORY_SNES_SUFAMI_TURBO_A_RAM ((3 << 8) | RETRO_MEMORY_SAVE_RAM) #define RETRO_MEMORY_SNES_SUFAMI_TURBO_B_RAM ((4 << 8) | RETRO_MEMORY_SAVE_RAM) #define RETRO_MEMORY_SNES_GAME_BOY_RAM ((5 << 8) | RETRO_MEMORY_SAVE_RAM) #define RETRO_MEMORY_SNES_GAME_BOY_RTC ((6 << 8) | RETRO_MEMORY_RTC) #define RETRO_GAME_TYPE_BSX 0x101 #define RETRO_GAME_TYPE_BSX_SLOTTED 0x102 #define RETRO_GAME_TYPE_SUFAMI_TURBO 0x103 #define RETRO_GAME_TYPE_SUPER_GAME_BOY 0x104 // Environment commands. #define RETRO_ENVIRONMENT_SET_ROTATION 1 // const unsigned * -- // Sets screen rotation of graphics. // Is only implemented if rotation can be accelerated by hardware. // Valid values are 0, 1, 2, 3, which rotates screen by 0, 90, 180, 270 degrees // counter-clockwise respectively. // #define RETRO_ENVIRONMENT_GET_OVERSCAN 2 // bool * -- // Boolean value whether or not the implementation should use overscan, or crop away overscan. // #define RETRO_ENVIRONMENT_GET_CAN_DUPE 3 // bool * -- // Boolean value whether or not SSNES supports frame duping, // passing NULL to video frame callback. // #define RETRO_ENVIRONMENT_GET_VARIABLE 4 // struct retro_variable * -- // Interface to aquire user-defined information from environment // that cannot feasibly be supported in a multi-system way. // Mostly used for obscure, // specific features that the user can tap into when neseccary. // #define RETRO_ENVIRONMENT_SET_VARIABLES 5 // const struct retro_variable * -- // Allows an implementation to signal the environment // which variables it might want to check for later using GET_VARIABLE. // 'data' points to an array of retro_variable structs terminated by a { NULL, NULL } element. // retro_variable::value should contain a human readable description of the key. // #define RETRO_ENVIRONMENT_SET_MESSAGE 6 // const struct retro_message * -- // Sets a message to be displayed in implementation-specific manner for a certain amount of 'frames'. struct retro_message { const char *msg; unsigned frames; }; struct retro_system_info { const char *library_name; const char *library_version; const char *valid_extensions; bool need_fullpath; bool block_extract; }; struct retro_game_geometry { unsigned base_width; // Nominal video width of game. unsigned base_height; // Nominal video height of game. unsigned max_width; // Maximum possible width of game. unsigned max_height; // Maximum possible height of game. float aspect_ratio; // Nominal aspect ratio of game. If aspect_ratio is <= 0.0, // an aspect ratio of base_width / base_height is assumed. // A frontend could override this setting if desired. }; struct retro_system_timing { double fps; // FPS of video content. double sample_rate; // Sampling rate of audio. }; struct retro_system_av_info { struct retro_game_geometry geometry; struct retro_system_timing timing; }; struct retro_variable { const char *key; // Variable to query in RETRO_ENVIRONMENT_GET_VARIABLE. // If NULL, obtains the complete environment string if more complex parsing is necessary. // The environment string is formatted as key-value pairs delimited by semicolons as so: // "key1=value1;key2=value2;..." const char *value; // Value to be obtained. If key does not exist, it is set to NULL. }; struct retro_game_info { const char *path; // Path to game, UTF-8 encoded. Usually used as a reference. // May be NULL if rom was loaded from stdin or similar. // SET_NEED_FULLPATH path guaranteed that this path is valid. const void *data; // Memory buffer of loaded game. // If the game is too big to load in one go. // SET_NEED_FULLPATH should be used. // In this case, data and size will be 0, // and game can be loaded from path. size_t size; // Size of memory buffer. const char *meta; // String of implementation specific meta-data. }; typedef bool (*retro_environment_t)(unsigned cmd, void *data); typedef void (*retro_video_refresh_t)(const void *data, unsigned width, unsigned height, size_t pitch); typedef void (*retro_audio_sample_t)(int16_t left, int16_t right); typedef size_t (*retro_audio_sample_batch_t)(const int16_t *data, size_t frames); typedef void (*retro_input_poll_t)(void); typedef int16_t (*retro_input_state_t)(unsigned port, unsigned device, unsigned index, unsigned id); void retro_init(void); void retro_deinit(void); unsigned retro_api_version(void); void retro_get_system_info(struct retro_system_info *info); void retro_get_system_av_info(struct retro_system_av_info *info); void retro_set_environment(retro_environment_t); void retro_set_video_refresh(retro_video_refresh_t); void retro_set_audio_sample(retro_audio_sample_t); void retro_set_audio_sample_batch(retro_audio_sample_batch_t); void retro_set_input_poll(retro_input_poll_t); void retro_set_input_state(retro_input_state_t); void retro_set_controller_port_device(unsigned port, unsigned device); void retro_reset(void); void retro_run(void); size_t retro_serialize_size(void); bool retro_serialize(void *data, size_t size); bool retro_unserialize(const void *data, size_t size); void retro_cheat_reset(void); void retro_cheat_set(unsigned index, bool enabled, const char *code); bool retro_load_game(const struct retro_game_info *game); bool retro_load_game_special( unsigned game_type, const struct retro_game_info *info, size_t num_info ); void retro_unload_game(void); unsigned retro_get_region(void); void *retro_get_memory_data(unsigned id); size_t retro_get_memory_size(unsigned id); #ifdef __cplusplus } #endif #endif