From b169d86bf8f1501f217db260cd79cd330a56e4e4 Mon Sep 17 00:00:00 2001 From: radius Date: Sat, 3 Feb 2018 12:38:11 -0500 Subject: [PATCH] subsystem support --- libretro/libretro.c | 101 +++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 95 insertions(+), 6 deletions(-) diff --git a/libretro/libretro.c b/libretro/libretro.c index 7469f5a..1b64b4a 100644 --- a/libretro/libretro.c +++ b/libretro/libretro.c @@ -33,7 +33,14 @@ static const char slash = '/'; #define VIDEO_HEIGHT 144 #define VIDEO_PIXELS (VIDEO_WIDTH * VIDEO_HEIGHT) -char battery_save_path[512]; +#define RETRO_MEMORY_GAMEBOY_1_RAM ((1 << 8) | RETRO_MEMORY_SAVE_RAM) +#define RETRO_MEMORY_GAMEBOY_1_RTC ((2 << 8) | RETRO_MEMORY_RTC) +#define RETRO_MEMORY_GAMEBOY_2_RAM ((3 << 8) | RETRO_MEMORY_SAVE_RAM) +#define RETRO_MEMORY_GAMEBOY_2_RTC ((3 << 8) | RETRO_MEMORY_RTC) + +#define RETRO_GAME_TYPE_GAMEBOY_LINK_2P 0x101 + +char battery_save_path[512]; char symbols_path[512]; enum model { @@ -100,7 +107,7 @@ static void GB_update_keys_status(GB_gameboy_t *gb, unsigned port) { input_poll_cb(); - + GB_set_key_state(gb, GB_KEY_RIGHT,input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT)); GB_set_key_state(gb, GB_KEY_LEFT, input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT)); GB_set_key_state(gb, GB_KEY_UP,input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP) ); @@ -109,12 +116,12 @@ static void GB_update_keys_status(GB_gameboy_t *gb, unsigned port) GB_set_key_state(gb, GB_KEY_B,input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B) ); GB_set_key_state(gb, GB_KEY_SELECT,input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT)); GB_set_key_state(gb, GB_KEY_START,input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START) ); - + if (gb->rumble_state) rumble.set_rumble_state(port, RETRO_RUMBLE_STRONG, 65535); else rumble.set_rumble_state(port, RETRO_RUMBLE_STRONG, 0); - + } @@ -201,6 +208,26 @@ static const struct retro_variable vars_link[] = { { NULL } }; +static const struct retro_subsystem_memory_info gb1_memory[] = { + { "srm", RETRO_MEMORY_GAMEBOY_1_RAM }, + { "rtc", RETRO_MEMORY_GAMEBOY_1_RTC }, +}; + +static const struct retro_subsystem_memory_info gb2_memory[] = { + { "srm", RETRO_MEMORY_GAMEBOY_2_RAM }, + { "rtc", RETRO_MEMORY_GAMEBOY_2_RTC }, +}; + +static const struct retro_subsystem_rom_info gb_roms[] = { + { "GameBoy #1", "gb|gbc", true, false, true, gb1_memory, 1 }, + { "GameBoy #2", "gb|gbc", true, false, true, gb2_memory, 1 }, +}; + + static const struct retro_subsystem_info subsystems[] = { + { "2 Player Gameboy Link", "gb_link_2p", gb_roms, 2, RETRO_GAME_TYPE_GAMEBOY_LINK_2P | 0x1000 }, + { NULL }, +}; + static void init_for_current_model(void) { unsigned i = 0; @@ -569,6 +596,7 @@ void retro_set_environment(retro_environment_t cb) { NULL, 0 }, }; cb(RETRO_ENVIRONMENT_SET_CONTROLLER_INFO, (void*)ports); + cb(RETRO_ENVIRONMENT_SET_SUBSYSTEM_INFO, (void*)subsystems); } void retro_set_audio_sample(retro_audio_sample_t cb) @@ -730,9 +758,70 @@ unsigned retro_get_region(void) return RETRO_REGION_NTSC; } -bool retro_load_game_special(unsigned type, const struct retro_game_info *info, size_t num) +bool retro_load_game_special(unsigned type, const struct retro_game_info *info, size_t num_info) { - return false; + struct retro_input_descriptor desc[] = { + { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "Left" }, + { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "Up" }, + { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "Down" }, + { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "Right" }, + { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, + { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "A" }, + { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" }, + { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, + { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "Left" }, + { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "Up" }, + { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "Down" }, + { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "Right" }, + { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, + { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "A" }, + { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" }, + { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, + { 0 }, + }; + + environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc); + + enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_XRGB8888; + if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) + { + log_cb(RETRO_LOG_INFO, "XRGB8888 is not supported.\n"); + return false; + } + + snprintf(retro_game_path, sizeof(retro_game_path), "%s", info->path); + init_for_current_model(); + for (int i = 0; i < emulated_devices; i++) + { + auto_model = (info[i].path[strlen(info[i].path) - 1] & ~0x20) == 'C' ? MODEL_CGB : MODEL_DMG; + if (GB_load_rom(&gameboy[i], info[i].path)) + { + log_cb(RETRO_LOG_INFO, "Failed to load ROM\n"); + return false; + } + } + + + bool yes = true; + environ_cb(RETRO_ENVIRONMENT_SET_SUPPORT_ACHIEVEMENTS, &yes); + + if (environ_cb(RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE, &rumble)) + log_cb(RETRO_LOG_INFO, "Rumble environment supported.\n"); + else + log_cb(RETRO_LOG_INFO, "Rumble environment not supported.\n"); + + static const struct retro_variable vars[] = { + { "sameboy_color_correction_mode", "Color Correction; off|correct curves|emulate hardware|preserve brightness" }, + { "sameboy_high_pass_filter_mode", "High Pass Filter; off|accurate|remove dc offset" }, + { "sameboy_model", "Emulated Model; Auto|Game Boy|Game Boy Color|Game Boy Advance" }, + { "sameboy_link", "Link Cable; disabled|enabled" }, + { "sameboy_link_layout", "Screen Layout; top-down|left-right" }, + { NULL } + }; + + environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, emulated_devices == 2 ? (void *)vars_link : (void *)vars); + check_variables(emulated_devices == 2 ? true : false); + return true; } size_t retro_serialize_size(void)