diff options
Diffstat (limited to 'libretro.c')
| -rw-r--r-- | libretro.c | 177 |
1 files changed, 105 insertions, 72 deletions
@@ -23,10 +23,10 @@ static cothread_t cpu_thread; /* to be removed */ u32 savestate_slot = 0; -void get_savestate_filename_noshot(u32 slot, char *name_buffer) +void get_savestate_filename_noshot(u32 slot, char* name_buffer) { - (void) slot; - sprintf(name_buffer, "dummy.svs"); + (void) slot; + sprintf(name_buffer, "dummy.svs"); } /* ------------ */ @@ -77,7 +77,7 @@ extern struct retro_perf_callback perf_cb; #endif -void retro_get_system_info(struct retro_system_info *info) +void retro_get_system_info(struct retro_system_info* info) { info->library_name = "TempGBA"; info->library_version = "v0.0.1"; @@ -87,28 +87,45 @@ void retro_get_system_info(struct retro_system_info *info) } -void retro_get_system_av_info(struct retro_system_av_info *info) +void retro_get_system_av_info(struct retro_system_av_info* info) { info->geometry.base_width = GBA_SCREEN_WIDTH; info->geometry.base_height = GBA_SCREEN_HEIGHT; info->geometry.max_width = GBA_SCREEN_WIDTH; info->geometry.max_height = GBA_SCREEN_HEIGHT; info->geometry.aspect_ratio = 0; - info->timing.fps = ((float) (16* 1024 * 1024)) / (308 * 228 * 4); // 59.72750057 hz + // 59.72750057 hz + info->timing.fps = ((float)(16 * 1024 * 1024)) / (308 * 228 * 4); info->timing.sample_rate = GBA_SOUND_FREQUENCY; } +#include <sys/mman.h> void retro_init() { init_gamepak_buffer(); init_sound(1); + + rom_translation_cache = mmap(NULL, ROM_TRANSLATION_CACHE_SIZE, + PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANON | MAP_PRIVATE, -1, 0); + ram_translation_cache = mmap(NULL, RAM_TRANSLATION_CACHE_SIZE, + PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANON | MAP_PRIVATE, -1, 0); + bios_translation_cache = mmap(NULL, BIOS_TRANSLATION_CACHE_SIZE, + PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANON | MAP_PRIVATE, -1, 0); + + rom_translation_ptr = rom_translation_cache; + ram_translation_ptr = ram_translation_cache; + bios_translation_ptr = bios_translation_cache; } void retro_deinit() { perf_cb.perf_log(); memory_term(); + + munmap(rom_translation_cache, ROM_TRANSLATION_CACHE_SIZE); + munmap(ram_translation_cache, RAM_TRANSLATION_CACHE_SIZE); + munmap(bios_translation_cache, BIOS_TRANSLATION_CACHE_SIZE); } void retro_set_environment(retro_environment_t cb) @@ -126,8 +143,14 @@ void retro_set_environment(retro_environment_t cb) } -void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; } -void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; } +void retro_set_video_refresh(retro_video_refresh_t cb) +{ + video_cb = cb; +} +void retro_set_input_poll(retro_input_poll_t cb) +{ + input_poll_cb = cb; +} void retro_set_controller_port_device(unsigned port, unsigned device) {} @@ -144,51 +167,51 @@ void retro_reset() size_t retro_serialize_size() { -// return SAVESTATE_SIZE; + // return SAVESTATE_SIZE; return 0; } -bool retro_serialize(void *data, size_t size) +bool retro_serialize(void* data, size_t size) { -// if (size < SAVESTATE_SIZE) - return false; + // if (size < SAVESTATE_SIZE) + return false; -// gba_save_state(data); + // gba_save_state(data); -// return true; + // return true; } -bool retro_unserialize(const void *data, size_t size) +bool retro_unserialize(const void* data, size_t size) { -// if (size < SAVESTATE_SIZE) - return false; + // if (size < SAVESTATE_SIZE) + return false; -// gba_load_state(data); + // gba_load_state(data); -// return true; + // return true; } void retro_cheat_reset() {} -void retro_cheat_set(unsigned index, bool enabled, const char *code) {} +void retro_cheat_set(unsigned index, bool enabled, const char* code) {} -void error_msg(const char *text) +void error_msg(const char* text) { if (log_cb) log_cb(RETRO_LOG_ERROR, text); } -void info_msg(const char *text) +void info_msg(const char* text) { if (log_cb) log_cb(RETRO_LOG_INFO, text); } -static void extract_directory(char *buf, const char *path, size_t size) +static void extract_directory(char* buf, const char* path, size_t size) { strncpy(buf, path, size - 1); buf[size - 1] = '\0'; - char *base = strrchr(buf, '/'); + char* base = strrchr(buf, '/'); if (base) *base = '\0'; @@ -196,10 +219,10 @@ static void extract_directory(char *buf, const char *path, size_t size) strncpy(buf, ".", size); } -bool retro_load_game(const struct retro_game_info *info) +bool retro_load_game(const struct retro_game_info* info) { char filename_bios[MAX_PATH]; - const char *dir = NULL; + const char* dir = NULL; enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565; if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) @@ -209,45 +232,45 @@ bool retro_load_game(const struct retro_game_info *info) return false; } - extract_directory(main_path,info->path,sizeof(main_path)); + extract_directory(main_path, info->path, sizeof(main_path)); if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) strncpy(filename_bios, dir, sizeof(filename_bios)); else strncpy(filename_bios, main_path, sizeof(filename_bios)); - strncat(filename_bios, "/gba_bios.bin",sizeof(filename_bios)); + strncat(filename_bios, "/gba_bios.bin", sizeof(filename_bios)); -// if (environ_cb(RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY, &dir) && dir) -// strncpy(dir_save, dir, sizeof(dir_save)); -// else -// strncpy(dir_save, main_path, sizeof(dir_save)); + // if (environ_cb(RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY, &dir) && dir) + // strncpy(dir_save, dir, sizeof(dir_save)); + // else + // strncpy(dir_save, main_path, sizeof(dir_save)); -// strncat(dir_save, "/",sizeof(dir_save)); + // strncat(dir_save, "/",sizeof(dir_save)); -// strncat(main_path, "/",sizeof(main_path)); + // strncat(main_path, "/",sizeof(main_path)); if (load_bios(filename_bios) != 0) { - error_msg("Could not load BIOS image file.\n"); - return false; + error_msg("Could not load BIOS image file.\n"); + return false; } - if(bios_rom[0] != 0x18) + if (bios_rom[0] != 0x18) { - info_msg("You have an incorrect BIOS image.\n"); - info_msg("While many games will work fine, some will not. It\n"); - info_msg("is strongly recommended that you obtain the\n"); - info_msg("correct BIOS file.\n"); + info_msg("You have an incorrect BIOS image.\n"); + info_msg("While many games will work fine, some will not. It\n"); + info_msg("is strongly recommended that you obtain the\n"); + info_msg("correct BIOS file.\n"); } gamepak_filename[0] = 0; if (load_gamepak(info->path) != 0) { - error_msg("Could not load the game file.\n"); - return false; + error_msg("Could not load the game file.\n"); + return false; } reset_gba(); @@ -258,8 +281,11 @@ bool retro_load_game(const struct retro_game_info *info) } -bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info) -{ return false; } +bool retro_load_game_special(unsigned game_type, + const struct retro_game_info* info, size_t num_info) +{ + return false; +} void retro_unload_game() { @@ -267,42 +293,45 @@ void retro_unload_game() update_backup(); } -unsigned retro_get_region() { return RETRO_REGION_NTSC; } +unsigned retro_get_region() +{ + return RETRO_REGION_NTSC; +} -void *retro_get_memory_data(unsigned id) +void* retro_get_memory_data(unsigned id) { -// switch (id) -// { -// case RETRO_MEMORY_SAVE_RAM: -// return gamepak_backup; -// } + // switch (id) + // { + // case RETRO_MEMORY_SAVE_RAM: + // return gamepak_backup; + // } return 0; } size_t retro_get_memory_size(unsigned id) { -// switch (id) -// { -// case RETRO_MEMORY_SAVE_RAM: -// switch(backup_type) -// { -// case BACKUP_SRAM: -// return sram_size; + // switch (id) + // { + // case RETRO_MEMORY_SAVE_RAM: + // switch(backup_type) + // { + // case BACKUP_SRAM: + // return sram_size; -// case BACKUP_FLASH: -// return flash_size; + // case BACKUP_FLASH: + // return flash_size; -// case BACKUP_EEPROM: -// return eeprom_size; + // case BACKUP_EEPROM: + // return eeprom_size; -// case BACKUP_NONE: -// return 0x0; + // case BACKUP_NONE: + // return 0x0; -// default: -// return 0x8000; -// } -// } + // default: + // return 0x8000; + // } + // } return 0; } @@ -324,11 +353,15 @@ void retro_run() render_audio(); - video_cb(gba_screen_pixels, GBA_SCREEN_WIDTH, GBA_SCREEN_HEIGHT, GBA_SCREEN_PITCH * 2); + video_cb(gba_screen_pixels, GBA_SCREEN_WIDTH, GBA_SCREEN_HEIGHT, + GBA_SCREEN_PITCH * 2); if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated) - check_variables(); + check_variables(); } -unsigned retro_api_version() { return RETRO_API_VERSION; } +unsigned retro_api_version() +{ + return RETRO_API_VERSION; +} |