mirror of
https://github.com/0ldsk00l/nestopia.git
synced 2025-04-02 10:31:51 -04:00
737 lines
20 KiB
C++
737 lines
20 KiB
C++
#include "libretro.h"
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#include <stdint.h>
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#include <string.h>
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#include <math.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <sstream>
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#include <fstream>
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#include <core/api/NstApiMachine.hpp>
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#include <core/api/NstApiEmulator.hpp>
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#include <core/api/NstApiVideo.hpp>
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#include <core/api/NstApiSound.hpp>
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#include <core/api/NstApiInput.hpp>
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#include <core/api/NstApiCartridge.hpp>
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#include <core/api/NstApiUser.hpp>
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#include <core/api/NstApiFds.hpp>
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#define NST_VERSION "1.47-WIP"
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#ifdef _WIN32
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#define snprintf _snprintf
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#endif
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using namespace Nes;
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static retro_log_printf_t log_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_environment_t environ_cb;
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static retro_input_poll_t input_poll_cb;
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static retro_input_state_t input_state_cb;
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static uint32_t video_buffer[Api::Video::Output::NTSC_WIDTH * Api::Video::Output::HEIGHT];
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static int16_t audio_buffer[(44100 / 50)];
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static int16_t audio_stereo_buffer[2 * (44100 / 50)];
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static Api::Emulator emulator;
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static Api::Machine *machine;
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static Api::Fds *fds;
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static char g_basename[256];
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static char g_rom_dir[256];
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static bool use_overscan;
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static unsigned blargg_ntsc;
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int16_t video_width = Api::Video::Output::WIDTH;
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size_t pitch;
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static Api::Video::Output *video;
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static Api::Sound::Output *audio;
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static Api::Input::Controllers *input;
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static void *sram;
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static unsigned long sram_size;
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static bool is_pal;
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int crossx = 0;
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int crossy = 0;
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void draw_crosshair(int x, int y)
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{
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uint32_t w = 0xFFFFFFFF;
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uint32_t b = 0x00000000;
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for(int i = -3; i < 4; i++) {
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video_buffer[256 * y + x + i] = b;
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video_buffer[256 * (y + i) + x] = b;
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}
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for(int i = -2; i < 3; i += 2) {
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video_buffer[256 * y + x + i] = w;
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video_buffer[256 * (y + i) + x] = w;
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}
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}
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static void NST_CALLBACK file_io_callback(void*, Api::User::File &file)
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{
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const void *addr;
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unsigned long addr_size;
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char slash;
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#ifdef _WIN32
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slash = '\\';
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#else
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slash = '/';
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#endif
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switch (file.GetAction())
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{
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case Api::User::File::LOAD_BATTERY:
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case Api::User::File::LOAD_EEPROM:
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case Api::User::File::LOAD_TAPE:
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case Api::User::File::LOAD_TURBOFILE:
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file.GetRawStorage(sram, sram_size);
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break;
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case Api::User::File::SAVE_BATTERY:
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case Api::User::File::SAVE_EEPROM:
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case Api::User::File::SAVE_TAPE:
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case Api::User::File::SAVE_TURBOFILE:
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file.GetContent(addr, addr_size);
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if (addr != sram || sram_size != addr_size)
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if (log_cb)
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log_cb(RETRO_LOG_INFO, "[Nestopia]: SRAM changed place in RAM!\n");
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break;
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case Api::User::File::LOAD_FDS:
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{
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char base[256];
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snprintf(base, sizeof(base), "%s%c%s.sav", g_rom_dir, slash, g_basename);
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if (log_cb)
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log_cb(RETRO_LOG_INFO, "Want to load FDS sav from: %s\n", base);
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std::ifstream in_tmp(base,std::ifstream::in|std::ifstream::binary);
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if (!in_tmp.is_open())
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return;
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file.SetPatchContent(in_tmp);
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}
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break;
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case Api::User::File::SAVE_FDS:
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{
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char base[256];
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snprintf(base, sizeof(base), "%s%c%s.sav", g_rom_dir, slash, g_basename);
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if (log_cb)
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log_cb(RETRO_LOG_INFO, "Want to save FDS sav to: %s\n", base);
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std::ofstream out_tmp(base,std::ifstream::out|std::ifstream::binary);
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if (out_tmp.is_open())
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file.GetPatchContent(Api::User::File::PATCH_UPS, out_tmp);
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}
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break;
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default:
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break;
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}
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}
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static void check_system_specs(void)
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{
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unsigned level = 6;
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environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
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}
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void retro_init(void)
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{
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struct retro_log_callback log;
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machine = new Api::Machine(emulator);
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input = new Api::Input::Controllers;
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Api::User::fileIoCallback.Set(file_io_callback, 0);
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if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log))
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log_cb = log.log;
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else
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log_cb = NULL;
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check_system_specs();
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}
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void retro_deinit(void)
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{
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if (machine->Is(Nes::Api::Machine::DISK))
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{
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if (fds)
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delete fds;
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fds = 0;
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}
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delete machine;
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delete video;
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delete audio;
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delete input;
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machine = 0;
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video = 0;
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audio = 0;
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input = 0;
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}
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unsigned retro_api_version(void)
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{
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return RETRO_API_VERSION;
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}
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void retro_set_controller_port_device(unsigned, unsigned)
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{
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}
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void retro_get_system_info(struct retro_system_info *info)
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{
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memset(info, 0, sizeof(*info));
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info->library_name = "Nestopia";
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info->library_version = "v" NST_VERSION;
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info->need_fullpath = false;
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info->valid_extensions = "nes|fds";
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}
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void retro_get_system_av_info(struct retro_system_av_info *info)
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{
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const retro_system_timing timing = { is_pal ? 50.0 : 60.0, 44100.0 };
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info->timing = timing;
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// It's better if the size is based on NTSC_WIDTH if the filter is on
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const retro_game_geometry geom = {
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Api::Video::Output::WIDTH - (use_overscan ? 0 : 16),
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Api::Video::Output::HEIGHT - (use_overscan ? 0 : 16),
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Api::Video::Output::NTSC_WIDTH,
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Api::Video::Output::HEIGHT,
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4.0 / 3.0,
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};
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info->geometry = geom;
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}
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void retro_set_environment(retro_environment_t cb)
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{
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environ_cb = cb;
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static const struct retro_variable vars[] = {
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{ "blargg_ntsc_filter", "Blargg NTSC filter; disabled|composite|svideo|rgb" },
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{ "palette", "Palette; canonical|consumer|alternative|rgb" },
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{ "nospritelimit", "Remove 8-sprites-per-scanline hardware limit; disabled|enabled" },
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{ NULL, NULL },
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};
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cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void*)vars);
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}
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void retro_set_audio_sample(retro_audio_sample_t cb)
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{
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audio_cb = cb;
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}
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void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb)
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{
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audio_batch_cb = cb;
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}
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void retro_set_input_poll(retro_input_poll_t cb)
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{
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input_poll_cb = cb;
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}
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void retro_set_input_state(retro_input_state_t cb)
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{
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input_state_cb = cb;
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}
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void retro_set_video_refresh(retro_video_refresh_t cb)
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{
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video_cb = cb;
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}
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void retro_reset(void)
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{
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machine->Reset(false);
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if (machine->Is(Nes::Api::Machine::DISK))
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{
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fds->EjectDisk();
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fds->InsertDisk(0, 0);
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}
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}
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typedef struct
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{
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unsigned retro;
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unsigned nes;
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} keymap;
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static const keymap bindmap[] = {
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{ RETRO_DEVICE_ID_JOYPAD_A, Core::Input::Controllers::Pad::A },
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{ RETRO_DEVICE_ID_JOYPAD_B, Core::Input::Controllers::Pad::B },
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{ RETRO_DEVICE_ID_JOYPAD_SELECT, Core::Input::Controllers::Pad::SELECT },
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{ RETRO_DEVICE_ID_JOYPAD_START, Core::Input::Controllers::Pad::START },
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{ RETRO_DEVICE_ID_JOYPAD_UP, Core::Input::Controllers::Pad::UP },
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{ RETRO_DEVICE_ID_JOYPAD_DOWN, Core::Input::Controllers::Pad::DOWN },
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{ RETRO_DEVICE_ID_JOYPAD_LEFT, Core::Input::Controllers::Pad::LEFT },
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{ RETRO_DEVICE_ID_JOYPAD_RIGHT, Core::Input::Controllers::Pad::RIGHT },
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};
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static void update_input()
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{
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input_poll_cb();
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input->pad[0].buttons = 0;
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input->pad[1].buttons = 0;
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input->zapper.fire = 0;
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input->vsSystem.insertCoin = 0;
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if (Api::Input(emulator).GetConnectedController(1) == 5) {
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static int zapx = use_overscan ? 0 : 8;
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static int zapy = use_overscan ? 0 : 8;
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zapx += input_state_cb(1, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_X);
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zapy += input_state_cb(1, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_Y);
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if (zapx >= 256) { crossx = 255; }
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else if (zapx <= 0) { crossx = 0; }
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else {crossx = zapx; }
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if (zapy >= 240) { crossy = 239; }
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else if (zapy <= 0) { crossy = 0; }
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else {crossy = zapy; }
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if (input_state_cb(1, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_TRIGGER)) {
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input->zapper.x = zapx;
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input->zapper.y = zapy;
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input->zapper.fire = 1;
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}
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if (input_state_cb(1, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_TURBO)) {
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input->zapper.x = ~1U;
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input->zapper.fire = 1;
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}
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}
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for (unsigned p = 0; p < 2; p++)
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for (unsigned bind = 0; bind < sizeof(bindmap) / sizeof(bindmap[0]); bind++)
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input->pad[p].buttons |= input_state_cb(p, RETRO_DEVICE_JOYPAD, 0, bindmap[bind].retro) ? bindmap[bind].nes : 0;
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if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L))
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input->vsSystem.insertCoin |= Core::Input::Controllers::VsSystem::COIN_1;
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if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R))
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input->vsSystem.insertCoin |= Core::Input::Controllers::VsSystem::COIN_2;
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if (machine->Is(Nes::Api::Machine::DISK))
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{
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if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y) &&
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fds->CanChangeDiskSide())
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fds->ChangeSide();
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if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X) && (fds->GetNumDisks() > 1))
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{
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int currdisk = fds->GetCurrentDisk();
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fds->EjectDisk();
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fds->InsertDisk(!currdisk, 0);
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}
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}
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}
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static void check_variables(void)
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{
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static bool last_ntsc_val_same;
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struct retro_variable var = {0};
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retro_reset();
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Api::Video video(emulator);
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Api::Video::RenderState renderState;
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Api::Machine machine( emulator );
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Api::Video::RenderState::Filter filter;
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var.key = "nospritelimit";
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
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{
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if (strcmp(var.value, "disabled") == 0)
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video.EnableUnlimSprites(false);
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else if (strcmp(var.value, "enabled") == 0)
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video.EnableUnlimSprites(true);
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}
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var.key = "blargg_ntsc_filter";
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
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{
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if (strcmp(var.value, "disabled") == 0)
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blargg_ntsc = 0;
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else if (strcmp(var.value, "composite") == 0)
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blargg_ntsc = 2;
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else if (strcmp(var.value, "svideo") == 0)
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blargg_ntsc = 3;
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else if (strcmp(var.value, "rgb") == 0)
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blargg_ntsc = 4;
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}
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switch(blargg_ntsc)
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{
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case 0:
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filter = Api::Video::RenderState::FILTER_NONE;
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video_width = Api::Video::Output::WIDTH;
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break;
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case 1:
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filter = Api::Video::RenderState::FILTER_NTSC;
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video_width = Api::Video::Output::NTSC_WIDTH;
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break;
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case 2:
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filter = Api::Video::RenderState::FILTER_NTSC;
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video.SetSharpness(Api::Video::DEFAULT_SHARPNESS_COMP);
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video.SetColorResolution(Api::Video::DEFAULT_COLOR_RESOLUTION_COMP);
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video.SetColorBleed(Api::Video::DEFAULT_COLOR_BLEED_COMP);
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video.SetColorArtifacts(Api::Video::DEFAULT_COLOR_ARTIFACTS_COMP);
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video.SetColorFringing(Api::Video::DEFAULT_COLOR_FRINGING_COMP);
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video_width = Api::Video::Output::NTSC_WIDTH;
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break;
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case 3:
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filter = Api::Video::RenderState::FILTER_NTSC;
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video.SetSharpness(Api::Video::DEFAULT_SHARPNESS_SVIDEO);
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video.SetColorResolution(Api::Video::DEFAULT_COLOR_RESOLUTION_SVIDEO);
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video.SetColorBleed(Api::Video::DEFAULT_COLOR_BLEED_SVIDEO);
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video.SetColorArtifacts(Api::Video::DEFAULT_COLOR_ARTIFACTS_SVIDEO);
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video.SetColorFringing(Api::Video::DEFAULT_COLOR_FRINGING_SVIDEO);
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video_width = Api::Video::Output::NTSC_WIDTH;
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break;
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case 4:
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filter = Api::Video::RenderState::FILTER_NTSC;
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video.SetSharpness(Api::Video::DEFAULT_SHARPNESS_RGB);
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video.SetColorResolution(Api::Video::DEFAULT_COLOR_RESOLUTION_RGB);
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video.SetColorBleed(Api::Video::DEFAULT_COLOR_BLEED_RGB);
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video.SetColorArtifacts(Api::Video::DEFAULT_COLOR_ARTIFACTS_RGB);
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video.SetColorFringing(Api::Video::DEFAULT_COLOR_FRINGING_RGB);
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video_width = Api::Video::Output::NTSC_WIDTH;
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break;
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}
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var.key = "palette";
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if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
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{
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if (strcmp(var.value, "canonical") == 0) {
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video.GetPalette().SetMode(Api::Video::Palette::MODE_YUV);
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video.SetDecoder(Api::Video::DECODER_CANONICAL);
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}
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else if (strcmp(var.value, "consumer") == 0) {
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video.GetPalette().SetMode(Api::Video::Palette::MODE_YUV);
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video.SetDecoder(Api::Video::DECODER_CONSUMER);
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}
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else if (strcmp(var.value, "alternative") == 0) {
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video.GetPalette().SetMode(Api::Video::Palette::MODE_YUV);
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video.SetDecoder(Api::Video::DECODER_ALTERNATIVE);
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}
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else if (strcmp(var.value, "rgb") == 0) {
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video.GetPalette().SetMode(Api::Video::Palette::MODE_RGB);
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}
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}
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pitch = video_width * 4;
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renderState.filter = filter;
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renderState.width = video_width;
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renderState.height = Api::Video::Output::HEIGHT;
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renderState.bits.count = 32;
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renderState.bits.mask.r = 0x00ff0000;
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renderState.bits.mask.g = 0x0000ff00;
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renderState.bits.mask.b = 0x000000ff;
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if (NES_FAILED(video.SetRenderState( renderState )) && log_cb)
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log_cb(RETRO_LOG_INFO, "Nestopia core rejected render state\n");;
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}
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void retro_run(void)
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{
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update_input();
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emulator.Execute(video, audio, input);
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if (Api::Input(emulator).GetConnectedController(1) == 5)
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draw_crosshair(crossx, crossy);
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unsigned frames = is_pal ? 44100 / 50 : 44100 / 60;
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for (unsigned i = 0; i < frames; i++)
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audio_stereo_buffer[(i << 1) + 0] = audio_stereo_buffer[(i << 1) + 1] = audio_buffer[i];
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audio_batch_cb(audio_stereo_buffer, frames);
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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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{
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check_variables();
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delete video;
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video = 0;
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video = new Api::Video::Output(video_buffer, video_width * sizeof(uint32_t));
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}
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bool overscan = blargg_ntsc || use_overscan;
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video_cb(video_buffer + (overscan ? 0 : (8 + 256 * 8)),
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video_width - (overscan ? 0 : 16),
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Api::Video::Output::HEIGHT - (overscan ? 0 : 16),
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pitch);
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}
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static void extract_basename(char *buf, const char *path, size_t size)
|
|
{
|
|
const char *base = strrchr(path, '/');
|
|
if (!base)
|
|
base = strrchr(path, '\\');
|
|
if (!base)
|
|
base = path;
|
|
|
|
if (*base == '\\' || *base == '/')
|
|
base++;
|
|
|
|
strncpy(buf, base, size - 1);
|
|
buf[size - 1] = '\0';
|
|
|
|
char *ext = strrchr(buf, '.');
|
|
if (ext)
|
|
*ext = '\0';
|
|
}
|
|
|
|
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, '/');
|
|
if (!base)
|
|
base = strrchr(buf, '\\');
|
|
|
|
if (base)
|
|
*base = '\0';
|
|
else
|
|
buf[0] = '\0';
|
|
}
|
|
|
|
|
|
bool retro_load_game(const struct retro_game_info *info)
|
|
{
|
|
const char *dir;
|
|
char slash;
|
|
char db_path[256];
|
|
|
|
#if defined(_WIN32)
|
|
slash = '\\';
|
|
#else
|
|
slash = '/';
|
|
#endif
|
|
|
|
if (!environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) || !dir)
|
|
return false;
|
|
|
|
if (!environ_cb(RETRO_ENVIRONMENT_GET_OVERSCAN, &use_overscan))
|
|
use_overscan = true;
|
|
|
|
snprintf(db_path, sizeof(db_path), "%s%cNstDatabase.xml", dir, slash);
|
|
|
|
if (log_cb)
|
|
log_cb(RETRO_LOG_INFO, "NstDatabase.xml path: %s\n", db_path);
|
|
|
|
Api::Cartridge::Database database(emulator);
|
|
std::ifstream *db_file = new std::ifstream(db_path, std::ifstream::in|std::ifstream::binary);
|
|
|
|
if (db_file->is_open())
|
|
{
|
|
database.Load(*db_file);
|
|
database.Enable(true);
|
|
}
|
|
else
|
|
{
|
|
if (log_cb)
|
|
log_cb(RETRO_LOG_WARN, "NstDatabase.xml required to detect region and some mappers.\n");
|
|
delete db_file;
|
|
}
|
|
|
|
if (info->path != NULL)
|
|
{
|
|
extract_basename(g_basename, info->path, sizeof(g_basename));
|
|
extract_directory(g_rom_dir, info->path, sizeof(g_rom_dir));
|
|
}
|
|
|
|
enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_XRGB8888;
|
|
if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt))
|
|
{
|
|
if (log_cb)
|
|
log_cb(RETRO_LOG_ERROR, "XRGB8888 is not supported.\n");
|
|
return false;
|
|
}
|
|
|
|
std::stringstream ss(std::string(reinterpret_cast<const char*>(info->data),
|
|
reinterpret_cast<const char*>(info->data) + info->size));
|
|
|
|
/*if (info->path && (strstr(info->path, "(E)") || strstr(info->path, "(Europe)")))
|
|
{
|
|
if (log_cb)
|
|
log_cb(RETRO_LOG_INFO, "[Nestopia]: Favoring PAL.\n");
|
|
system = Api::Machine::FAVORED_NES_PAL;
|
|
is_pal = true;
|
|
}
|
|
else if (info->path && (strstr(info->path, "(J)") || strstr(info->path, "(Japan)")))
|
|
{
|
|
if (log_cb)
|
|
log_cb(RETRO_LOG_INFO, "[Nestopia]: Favoring Famicom.\n");
|
|
system = Api::Machine::FAVORED_FAMICOM;
|
|
}*/
|
|
|
|
if (info->path && (strstr(info->path, ".fds") || strstr(info->path, ".FDS")))
|
|
{
|
|
fds = new Api::Fds(emulator);
|
|
|
|
if (fds)
|
|
{
|
|
char fds_bios_path[256];
|
|
/* search for BIOS in system directory */
|
|
bool found = false;
|
|
|
|
snprintf(fds_bios_path, sizeof(fds_bios_path), "%s%cdisksys.rom", dir, slash);
|
|
if (log_cb)
|
|
log_cb(RETRO_LOG_INFO, "FDS BIOS path: %s\n", fds_bios_path);
|
|
|
|
std::ifstream *fds_bios_file = new std::ifstream(fds_bios_path, std::ifstream::in|std::ifstream::binary);
|
|
|
|
if (fds_bios_file->is_open())
|
|
fds->SetBIOS(fds_bios_file);
|
|
else
|
|
{
|
|
delete fds_bios_file;
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
Api::Machine::FavoredSystem system = Api::Machine::FAVORED_NES_NTSC;
|
|
is_pal = false;
|
|
|
|
if (machine->Load(ss, system))
|
|
return false;
|
|
|
|
// If you have no Database, no region detection for you.
|
|
if (database.IsLoaded())
|
|
{
|
|
machine->SetMode(machine->GetDesiredMode());
|
|
if (machine->GetMode() == Api::Machine::PAL)
|
|
is_pal = true;
|
|
}
|
|
else
|
|
machine->SetMode(Api::Machine::NTSC);
|
|
|
|
if (machine->Is(Nes::Api::Machine::DISK))
|
|
fds->InsertDisk(0, 0);
|
|
|
|
if (log_cb)
|
|
log_cb(RETRO_LOG_INFO, "[Nestopia]: Machine is %s.\n", is_pal ? "PAL" : "NTSC");
|
|
|
|
audio = new Api::Sound::Output(audio_buffer, is_pal ? 44100 / 50 : 44100 / 60);
|
|
|
|
Api::Video ivideo(emulator);
|
|
ivideo.SetSharpness(Api::Video::DEFAULT_SHARPNESS_RGB);
|
|
ivideo.SetColorResolution(Api::Video::DEFAULT_COLOR_RESOLUTION_RGB);
|
|
ivideo.SetColorBleed(Api::Video::DEFAULT_COLOR_BLEED_RGB);
|
|
ivideo.SetColorArtifacts(Api::Video::DEFAULT_COLOR_ARTIFACTS_RGB);
|
|
ivideo.SetColorFringing(Api::Video::DEFAULT_COLOR_FRINGING_RGB);
|
|
|
|
Api::Video::RenderState state;
|
|
state.filter = Api::Video::RenderState::FILTER_NONE;
|
|
state.width = 256;
|
|
state.height = 240;
|
|
state.bits.count = 32;
|
|
state.bits.mask.r = 0x00ff0000;
|
|
state.bits.mask.g = 0x0000ff00;
|
|
state.bits.mask.b = 0x000000ff;
|
|
ivideo.SetRenderState(state);
|
|
|
|
Api::Sound isound(emulator);
|
|
isound.SetSampleBits(16);
|
|
isound.SetSampleRate(44100);
|
|
isound.SetSpeaker(Api::Sound::SPEAKER_MONO);
|
|
|
|
//Api::Input(emulator).ConnectController(0, Api::Input::PAD1);
|
|
//Api::Input(emulator).ConnectController(1, Api::Input::PAD2);
|
|
Api::Input(emulator).AutoSelectController(0);
|
|
Api::Input(emulator).AutoSelectController(1);
|
|
//Api::Input(emulator).ConnectController(1, Api::Input::ZAPPER);
|
|
|
|
machine->Power(true);
|
|
|
|
check_variables();
|
|
|
|
video = new Api::Video::Output(video_buffer, video_width * sizeof(uint32_t));
|
|
|
|
return true;
|
|
}
|
|
|
|
void retro_unload_game(void)
|
|
{
|
|
machine->Unload();
|
|
sram = 0;
|
|
sram_size = 0;
|
|
}
|
|
|
|
unsigned retro_get_region(void)
|
|
{
|
|
return is_pal ? RETRO_REGION_PAL : RETRO_REGION_NTSC;
|
|
}
|
|
|
|
bool retro_load_game_special(unsigned, const struct retro_game_info *, size_t)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
size_t retro_serialize_size(void)
|
|
{
|
|
std::stringstream ss;
|
|
if (machine->SaveState(ss, Api::Machine::NO_COMPRESSION))
|
|
return 0;
|
|
return ss.str().size();
|
|
}
|
|
|
|
bool retro_serialize(void *data, size_t size)
|
|
{
|
|
std::stringstream ss;
|
|
if (machine->SaveState(ss, Api::Machine::NO_COMPRESSION))
|
|
return false;
|
|
|
|
std::string state = ss.str();
|
|
if (state.size() > size)
|
|
return false;
|
|
|
|
std::copy(state.begin(), state.end(), reinterpret_cast<char*>(data));
|
|
return true;
|
|
}
|
|
|
|
bool retro_unserialize(const void *data, size_t size)
|
|
{
|
|
std::stringstream ss(std::string(reinterpret_cast<const char*>(data),
|
|
reinterpret_cast<const char*>(data) + size));
|
|
return !machine->LoadState(ss);
|
|
}
|
|
|
|
void *retro_get_memory_data(unsigned id)
|
|
{
|
|
if (id != RETRO_MEMORY_SAVE_RAM)
|
|
return 0;
|
|
|
|
return sram;
|
|
}
|
|
|
|
size_t retro_get_memory_size(unsigned id)
|
|
{
|
|
if (id != RETRO_MEMORY_SAVE_RAM)
|
|
return 0;
|
|
|
|
return sram_size;
|
|
}
|
|
|
|
void retro_cheat_reset(void)
|
|
{}
|
|
|
|
void retro_cheat_set(unsigned, bool, const char *)
|
|
{}
|