mirror of
https://github.com/Marat-Tanalin/bsnes-mt.git
synced 2025-04-02 10:21:42 -04:00
721 lines
24 KiB
C++
721 lines
24 KiB
C++
#include <cassert>
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#include "libretro.h"
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static retro_environment_t environ_cb;
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static retro_video_refresh_t video_cb;
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static retro_audio_sample_t audio_cb;
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static retro_audio_sample_batch_t audio_batch_cb;
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static retro_input_poll_t input_poll;
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static retro_input_state_t input_state;
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static retro_log_printf_t libretro_print;
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#define SAMPLERATE 48000
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#define AUDIOBUFSIZE (SAMPLERATE/50) * 2
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static int16_t audio_buffer[AUDIOBUFSIZE];
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static uint16_t audio_buffer_index = 0;
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static uint16_t audio_buffer_max = AUDIOBUFSIZE;
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static int run_ahead_frames = 0;
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static void audio_queue(int16_t left, int16_t right)
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{
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audio_buffer[audio_buffer_index++] = left;
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audio_buffer[audio_buffer_index++] = right;
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if (audio_buffer_index == audio_buffer_max)
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{
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audio_batch_cb(audio_buffer, audio_buffer_max/2);
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audio_buffer_index = 0;
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}
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}
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#include "program.cpp"
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static string sgb_bios;
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static vector<string> cheatList;
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static int aspect_ratio_mode = 0;
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#define RETRO_DEVICE_JOYPAD_MULTITAP RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 0)
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#define RETRO_DEVICE_LIGHTGUN_SUPER_SCOPE RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_LIGHTGUN, 0)
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#define RETRO_DEVICE_LIGHTGUN_JUSTIFIER RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_LIGHTGUN, 1)
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#define RETRO_DEVICE_LIGHTGUN_JUSTIFIERS RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_LIGHTGUN, 2)
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#define RETRO_GAME_TYPE_SGB 0x101 | 0x1000
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#define RETRO_MEMORY_SGB_SRAM ((1 << 8) | RETRO_MEMORY_SAVE_RAM)
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#define RETRO_MEMORY_GB_SRAM ((2 << 8) | RETRO_MEMORY_SAVE_RAM)
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static double get_aspect_ratio()
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{
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if (aspect_ratio_mode == 0 && program->superFamicom.region == "NTSC")
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return 1.306122;
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else if (aspect_ratio_mode == 0 && program->superFamicom.region == "PAL")
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return 1.584216;
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else if (aspect_ratio_mode == 1) // 8:7
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return 8.0/7.0;
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else if (aspect_ratio_mode == 2) // 4:3
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return 4.0/3.0;
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else if (aspect_ratio_mode == 3) // NTSC
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return 1.306122;
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else if (aspect_ratio_mode == 4) // PAL
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return 1.584216;
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else
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return 8.0/7.0; // Default
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}
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static void flush_variables()
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{
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retro_variable variable = { "bsnes_aspect_ratio", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "8:7") == 0)
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aspect_ratio_mode = 1;
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else if (strcmp(variable.value, "4:3") == 0)
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aspect_ratio_mode = 2;
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else if (strcmp(variable.value, "NTSC") == 0)
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aspect_ratio_mode = 3;
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else if (strcmp(variable.value, "PAL") == 0)
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aspect_ratio_mode = 4;
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else
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aspect_ratio_mode = 0;
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}
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variable = { "bsnes_blur_emulation", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Video/BlurEmulation", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Video/BlurEmulation", false);
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}
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variable = { "bsnes_hotfixes", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/Hotfixes", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/Hotfixes", false);
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}
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variable = { "bsnes_entropy", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "None") == 0)
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emulator->configure("Hacks/Entropy", "None");
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else if (strcmp(variable.value, "Low") == 0)
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emulator->configure("Hacks/Entropy", "Low");
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else if (strcmp(variable.value, "High") == 0)
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emulator->configure("Hacks/Entropy", "High");
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}
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variable = { "bsnes_cpu_overclock", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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int val = atoi(variable.value);
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emulator->configure("Hacks/CPU/Overclock", val);
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}
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variable = { "bsnes_cpu_fastmath", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/CPU/FastMath", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/CPU/FastMath", false);
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}
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variable = { "bsnes_cpu_sa1_overclock", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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int val = atoi(variable.value);
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emulator->configure("Hacks/SA1/Overclock", val);
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}
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variable = { "bsnes_cpu_sfx_overclock", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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int val = atoi(variable.value);
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emulator->configure("Hacks/SuperFX/Overclock", val);
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}
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variable = { "bsnes_ppu_fast", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/PPU/Fast", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/PPU/Fast", false);
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}
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variable = { "bsnes_ppu_deinterlace", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/PPU/Deinterlace", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/PPU/Deinterlace", false);
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}
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variable = { "bsnes_ppu_no_sprite_limit", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/PPU/NoSpriteLimit", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/PPU/NoSpriteLimit", false);
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}
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variable = { "bsnes_ppu_no_vram_blocking", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/PPU/NoVRAMBlocking", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/PPU/NoVRAMBlocking", false);
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}
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variable = { "bsnes_ppu_show_overscan", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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program->overscan = true;
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else if (strcmp(variable.value, "OFF") == 0)
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program->overscan = false;
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}
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variable = { "bsnes_mode7_scale", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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int val = variable.value[0] - '0';
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if (val >= 1 && val <= 8)
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emulator->configure("Hacks/PPU/Mode7/Scale", val);
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}
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variable = { "bsnes_mode7_perspective", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/PPU/Mode7/Perspective", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/PPU/Mode7/Perspective", false);
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}
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variable = { "bsnes_mode7_supersample", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/PPU/Mode7/Supersample", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/PPU/Mode7/Supersample", false);
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}
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variable = { "bsnes_mode7_mosaic", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/PPU/Mode7/Mosaic", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/PPU/Mode7/Mosaic", false);
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}
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variable = { "bsnes_dsp_fast", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/DSP/Fast", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/DSP/Fast", false);
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}
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variable = { "bsnes_dsp_cubic", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/DSP/Cubic", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/DSP/Cubic", false);
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}
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variable = { "bsnes_dsp_echo_shadow", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/DSP/EchoShadow", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/DSP/EchoShadow", false);
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}
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variable = { "bsnes_coprocessor_delayed_sync", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/Coprocessor/DelayedSync", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/Coprocessor/DelayedSync", false);
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}
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variable = { "bsnes_coprocessor_prefer_hle", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "ON") == 0)
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emulator->configure("Hacks/Coprocessor/PreferHLE", true);
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else if (strcmp(variable.value, "OFF") == 0)
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emulator->configure("Hacks/Coprocessor/PreferHLE", false);
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}
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variable = { "bsnes_sgb_bios", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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sgb_bios = variable.value;
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}
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variable = { "bsnes_run_ahead_frames", nullptr };
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &variable) && variable.value)
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{
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if (strcmp(variable.value, "OFF") == 0)
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run_ahead_frames = 0;
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else
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run_ahead_frames = atoi(variable.value);
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}
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// Refresh Geometry
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struct retro_system_av_info avinfo;
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retro_get_system_av_info(&avinfo);
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avinfo.geometry.aspect_ratio = get_aspect_ratio();
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environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &avinfo);
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}
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static void check_variables()
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{
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bool updated = false;
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
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flush_variables();
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}
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static uint retro_device_to_snes(unsigned device)
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{
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switch (device)
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{
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default:
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case RETRO_DEVICE_NONE:
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return SuperFamicom::ID::Device::None;
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case RETRO_DEVICE_JOYPAD:
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return SuperFamicom::ID::Device::Gamepad;
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case RETRO_DEVICE_ANALOG:
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return SuperFamicom::ID::Device::Gamepad;
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case RETRO_DEVICE_JOYPAD_MULTITAP:
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return SuperFamicom::ID::Device::SuperMultitap;
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case RETRO_DEVICE_MOUSE:
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return SuperFamicom::ID::Device::Mouse;
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case RETRO_DEVICE_LIGHTGUN_SUPER_SCOPE:
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return SuperFamicom::ID::Device::SuperScope;
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case RETRO_DEVICE_LIGHTGUN_JUSTIFIER:
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return SuperFamicom::ID::Device::Justifier;
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case RETRO_DEVICE_LIGHTGUN_JUSTIFIERS:
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return SuperFamicom::ID::Device::Justifiers;
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}
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}
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static void set_controller_ports(unsigned port, unsigned device)
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{
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if (port < 2)
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emulator->connect(port, retro_device_to_snes(device));
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}
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static void set_environment_info(retro_environment_t cb)
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{
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static const struct retro_subsystem_memory_info sgb_memory[] = {
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{ "srm", RETRO_MEMORY_SGB_SRAM },
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};
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static const struct retro_subsystem_memory_info gb_memory[] = {
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{ "srm", RETRO_MEMORY_GB_SRAM },
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};
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static const struct retro_subsystem_rom_info sgb_roms[] = {
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{ "Game Boy ROM", "gb|gbc", true, false, true, gb_memory, 1 },
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{ "Super Game Boy ROM", "smc|sfc|swc|fig|bs", true, false, true, sgb_memory, 1 },
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};
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static const struct retro_subsystem_info subsystems[] = {
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{ "Super Game Boy", "sgb", sgb_roms, 2, RETRO_GAME_TYPE_SGB },
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{}
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};
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cb(RETRO_ENVIRONMENT_SET_SUBSYSTEM_INFO, (void*)subsystems);
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static const retro_controller_description port_1[] = {
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{ "SNES Joypad", RETRO_DEVICE_JOYPAD },
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{ "SNES Mouse", RETRO_DEVICE_MOUSE },
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};
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static const retro_controller_description port_2[] = {
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{ "SNES Joypad", RETRO_DEVICE_JOYPAD },
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{ "SNES Mouse", RETRO_DEVICE_MOUSE },
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{ "Multitap", RETRO_DEVICE_JOYPAD_MULTITAP },
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{ "SuperScope", RETRO_DEVICE_LIGHTGUN_SUPER_SCOPE },
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{ "Justifier", RETRO_DEVICE_LIGHTGUN_JUSTIFIER },
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{ "Justifiers", RETRO_DEVICE_LIGHTGUN_JUSTIFIERS },
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};
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static const retro_controller_info ports[] = {
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{ port_1, 2 },
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{ port_2, 6 },
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{ 0 },
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};
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cb(RETRO_ENVIRONMENT_SET_CONTROLLER_INFO, const_cast<retro_controller_info *>(ports));
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static const retro_input_descriptor desc[] = {
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{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
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{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
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{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
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{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
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{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" },
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{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "A" },
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{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "X" },
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{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Y" },
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{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L" },
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{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R" },
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{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
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{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
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{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
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{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
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{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
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{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
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{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" },
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{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "A" },
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{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "X" },
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{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Y" },
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{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L" },
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{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R" },
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{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
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{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
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{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
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{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
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{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
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{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
|
|
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" },
|
|
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "A" },
|
|
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "X" },
|
|
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Y" },
|
|
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L" },
|
|
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R" },
|
|
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
|
|
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
|
|
|
|
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
|
|
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
|
|
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
|
|
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
|
|
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" },
|
|
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "A" },
|
|
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "X" },
|
|
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Y" },
|
|
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L" },
|
|
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R" },
|
|
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
|
|
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
|
|
|
|
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
|
|
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
|
|
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
|
|
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
|
|
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" },
|
|
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "A" },
|
|
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "X" },
|
|
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Y" },
|
|
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L" },
|
|
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R" },
|
|
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
|
|
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
|
|
|
|
{ 0 },
|
|
};
|
|
|
|
cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, const_cast<retro_input_descriptor *>(desc));
|
|
|
|
static const retro_variable vars[] = {
|
|
{ "bsnes_aspect_ratio", "Aspect Ratio; Auto|8:7|4:3|NTSC|PAL" },
|
|
{ "bsnes_blur_emulation", "Blur emulation; OFF|ON" },
|
|
{ "bsnes_entropy", "Entropy (randomization); Low|High|None" },
|
|
{ "bsnes_hotfixes", "Hotfixes; OFF|ON" },
|
|
{ "bsnes_cpu_overclock", "CPU Overclocking; 100|110|120|130|140|150|160|170|180|190|200|210|220|230|240|250|260|270|280|290|300|310|320|330|340|350|360|370|380|390|400|10|20|30|40|50|60|70|80|90" },
|
|
{ "bsnes_cpu_fastmath", "CPU Fast Math; OFF|ON" },
|
|
{ "bsnes_sa1_overclock", "SA1 Coprocessor Overclocking; 100|110|120|130|140|150|160|170|180|190|200|210|220|230|240|250|260|270|280|290|300|310|320|330|340|350|360|370|380|390|400|10|20|30|40|50|60|70|80|90" },
|
|
{ "bsnes_sfx_overclock", "SuperFX Coprocessor Overclocking; 100|110|120|130|140|150|160|170|180|190|200|210|220|230|240|250|260|270|280|290|300|310|320|330|340|350|360|370|380|390|400|410|420|430|440|450|460|470|480|490|500|510|520|530|540|550|560|570|580|590|600|610|620|630|640|650|660|670|680|690|700|710|720|730|740|750|760|770|780|790|800|10|20|30|40|50|60|70|80|90" },
|
|
{ "bsnes_ppu_fast", "PPU Fast mode; ON|OFF" },
|
|
{ "bsnes_ppu_deinterlace", "PPU Deinterlace; ON|OFF" },
|
|
{ "bsnes_ppu_no_sprite_limit", "PPU No sprite limit; OFF|ON" },
|
|
{ "bsnes_ppu_no_vram_blocking", "PPU No VRAM blocking; OFF|ON" },
|
|
{ "bsnes_ppu_show_overscan", "Show Overscan; OFF|ON" },
|
|
{ "bsnes_mode7_scale", "HD Mode 7 Scale; 1x|2x|3x|4x|5x|6x|7x|8x" },
|
|
{ "bsnes_mode7_perspective", "HD Mode 7 Perspective correction; ON|OFF" },
|
|
{ "bsnes_mode7_supersample", "HD Mode 7 Supersampling; OFF|ON" },
|
|
{ "bsnes_mode7_mosaic", "HD Mode 7 HD->SD Mosaic; ON|OFF" },
|
|
{ "bsnes_dsp_fast", "DSP Fast mode; ON|OFF" },
|
|
{ "bsnes_dsp_cubic", "DSP Cubic interpolation; OFF|ON" },
|
|
{ "bsnes_dsp_echo_shadow", "DSP Echo shadow RAM; OFF|ON" },
|
|
{ "bsnes_coprocessor_delayed_sync", "Coprocessor Delayed Sync; ON|OFF" },
|
|
{ "bsnes_coprocessor_prefer_hle", "Coprocessor Prefer HLE; ON|OFF" },
|
|
{ "bsnes_sgb_bios", "Preferred Super GameBoy BIOS (restart); SGB1.sfc|SGB2.sfc" },
|
|
{ "bsnes_run_ahead_frames", "Amount of frames for run-ahead; OFF|1|2|3|4" },
|
|
{ nullptr },
|
|
};
|
|
cb(RETRO_ENVIRONMENT_SET_VARIABLES, const_cast<retro_variable *>(vars));
|
|
}
|
|
|
|
RETRO_API void retro_set_environment(retro_environment_t cb)
|
|
{
|
|
environ_cb = cb;
|
|
|
|
retro_log_callback log = {};
|
|
if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log) && log.log)
|
|
libretro_print = log.log;
|
|
|
|
set_environment_info(cb);
|
|
}
|
|
|
|
RETRO_API void retro_set_video_refresh(retro_video_refresh_t cb)
|
|
{
|
|
video_cb = cb;
|
|
}
|
|
|
|
RETRO_API void retro_set_audio_sample(retro_audio_sample_t cb)
|
|
{
|
|
audio_cb = cb;
|
|
}
|
|
|
|
RETRO_API void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb)
|
|
{
|
|
audio_batch_cb = cb;
|
|
}
|
|
|
|
RETRO_API void retro_set_input_poll(retro_input_poll_t cb)
|
|
{
|
|
input_poll = cb;
|
|
}
|
|
|
|
RETRO_API void retro_set_input_state(retro_input_state_t cb)
|
|
{
|
|
input_state = cb;
|
|
}
|
|
|
|
RETRO_API void retro_init()
|
|
{
|
|
emulator = new SuperFamicom::Interface;
|
|
program = new Program;
|
|
}
|
|
|
|
RETRO_API void retro_deinit()
|
|
{
|
|
delete program;
|
|
}
|
|
|
|
RETRO_API unsigned retro_api_version()
|
|
{
|
|
return RETRO_API_VERSION;
|
|
}
|
|
|
|
RETRO_API void retro_get_system_info(retro_system_info *info)
|
|
{
|
|
info->library_name = "bsnes";
|
|
info->library_version = Emulator::Version;
|
|
info->need_fullpath = true;
|
|
info->valid_extensions = "smc|sfc";
|
|
info->block_extract = false;
|
|
}
|
|
|
|
RETRO_API void retro_get_system_av_info(struct retro_system_av_info *info)
|
|
{
|
|
info->geometry.base_width = 512; // accurate ppu
|
|
info->geometry.base_height = program->overscan ? 480 : 448; // accurate ppu
|
|
info->geometry.max_width = 2048; // 8x 256 for hd mode 7
|
|
info->geometry.max_height = 1920; // 8x 240
|
|
info->geometry.aspect_ratio = get_aspect_ratio();
|
|
info->timing.sample_rate = SAMPLERATE;
|
|
|
|
if (retro_get_region() == RETRO_REGION_NTSC) {
|
|
info->timing.fps = 21477272.0 / 357366.0;
|
|
audio_buffer_max = (SAMPLERATE/60) * 2;
|
|
}
|
|
else
|
|
{
|
|
info->timing.fps = 21281370.0 / 425568.0;
|
|
}
|
|
}
|
|
|
|
RETRO_API void retro_set_controller_port_device(unsigned port, unsigned device)
|
|
{
|
|
set_controller_ports(port, device);
|
|
}
|
|
|
|
RETRO_API void retro_reset()
|
|
{
|
|
emulator->reset();
|
|
}
|
|
|
|
static void run_with_runahead(const int frames)
|
|
{
|
|
assert(frames > 0);
|
|
|
|
emulator->setRunAhead(true);
|
|
emulator->run();
|
|
auto state = emulator->serialize(0);
|
|
for (int i = 0; i < frames - 1; ++i) {
|
|
emulator->run();
|
|
}
|
|
emulator->setRunAhead(false);
|
|
emulator->run();
|
|
state.setMode(serializer::Mode::Load);
|
|
emulator->unserialize(state);
|
|
}
|
|
|
|
RETRO_API void retro_run()
|
|
{
|
|
check_variables();
|
|
input_poll();
|
|
|
|
bool is_fast_forwarding = false;
|
|
environ_cb(RETRO_ENVIRONMENT_GET_FASTFORWARDING, &is_fast_forwarding);
|
|
if (is_fast_forwarding || run_ahead_frames == 0)
|
|
emulator->run();
|
|
else
|
|
run_with_runahead(run_ahead_frames);
|
|
}
|
|
|
|
RETRO_API size_t retro_serialize_size()
|
|
{
|
|
return emulator->serialize().size();
|
|
}
|
|
|
|
RETRO_API bool retro_serialize(void *data, size_t size)
|
|
{
|
|
memcpy(data, emulator->serialize().data(), size);
|
|
return true;
|
|
}
|
|
|
|
RETRO_API bool retro_unserialize(const void *data, size_t size)
|
|
{
|
|
serializer s(static_cast<const uint8_t *>(data), size);
|
|
return emulator->unserialize(s);
|
|
}
|
|
|
|
RETRO_API void retro_cheat_reset()
|
|
{
|
|
cheatList.reset();
|
|
emulator->cheats(cheatList);
|
|
}
|
|
|
|
RETRO_API void retro_cheat_set(unsigned index, bool enabled, const char *code)
|
|
{
|
|
string cheat = string(code);
|
|
bool decoded = false;
|
|
|
|
if (program->gameBoy.program)
|
|
{
|
|
decoded = decodeGB(cheat);
|
|
}
|
|
else
|
|
{
|
|
decoded = decodeSNES(cheat);
|
|
}
|
|
|
|
if (enabled && decoded)
|
|
{
|
|
cheatList.append(cheat);
|
|
emulator->cheats(cheatList);
|
|
}
|
|
}
|
|
|
|
RETRO_API bool retro_load_game(const retro_game_info *game)
|
|
{
|
|
// bsnes uses 0RGB1555 internally but it is deprecated
|
|
// let software conversion happen in frontend
|
|
/*retro_pixel_format fmt = RETRO_PIXEL_FORMAT_0RGB1555;
|
|
if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt))
|
|
return false;*/
|
|
|
|
emulator->configure("Audio/Frequency", SAMPLERATE);
|
|
|
|
flush_variables();
|
|
|
|
if (string(game->path).endsWith(".gb") || string(game->path).endsWith(".gbc"))
|
|
{
|
|
const char *system_dir;
|
|
environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &system_dir);
|
|
string sgb_full_path = string(system_dir, "/", sgb_bios).transform("\\", "/");
|
|
if (!file::exists(sgb_full_path)) {
|
|
return false;
|
|
}
|
|
|
|
program->superFamicom.location = sgb_full_path;
|
|
program->gameBoy.location = string(game->path);
|
|
}
|
|
else
|
|
{
|
|
program->superFamicom.location = string(game->path);
|
|
}
|
|
program->base_name = string(game->path);
|
|
|
|
program->load();
|
|
|
|
emulator->connect(SuperFamicom::ID::Port::Controller1, SuperFamicom::ID::Device::Gamepad);
|
|
emulator->connect(SuperFamicom::ID::Port::Controller2, SuperFamicom::ID::Device::Gamepad);
|
|
return true;
|
|
}
|
|
|
|
RETRO_API bool retro_load_game_special(unsigned game_type,
|
|
const struct retro_game_info *info, size_t num_info)
|
|
{
|
|
emulator->configure("Audio/Frequency", SAMPLERATE);
|
|
|
|
flush_variables();
|
|
|
|
switch(game_type)
|
|
{
|
|
case RETRO_GAME_TYPE_SGB:
|
|
{
|
|
libretro_print(RETRO_LOG_INFO, "GB ROM: %s\n", info[0].path);
|
|
libretro_print(RETRO_LOG_INFO, "SGB ROM: %s\n", info[1].path);
|
|
program->gameBoy.location = info[0].path;
|
|
program->superFamicom.location = info[1].path;
|
|
}
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
|
|
program->load();
|
|
|
|
emulator->connect(SuperFamicom::ID::Port::Controller1, SuperFamicom::ID::Device::Gamepad);
|
|
emulator->connect(SuperFamicom::ID::Port::Controller2, SuperFamicom::ID::Device::Gamepad);
|
|
return true;
|
|
}
|
|
|
|
RETRO_API void retro_unload_game()
|
|
{
|
|
program->save();
|
|
emulator->unload();
|
|
}
|
|
|
|
RETRO_API unsigned retro_get_region()
|
|
{
|
|
return program->superFamicom.region == "NTSC" ? RETRO_REGION_NTSC : RETRO_REGION_PAL;
|
|
}
|
|
|
|
// Currently, there is no safe/sensible way to use the memory interface without severe hackery.
|
|
// Rely on higan to load and save SRAM until there is really compelling reason not to.
|
|
RETRO_API void *retro_get_memory_data(unsigned id)
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
RETRO_API size_t retro_get_memory_size(unsigned id)
|
|
{
|
|
return 0;
|
|
}
|