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Genesis-Plus-GX/libretro/libretro.c
ToadKing b55896a2a8 fix snprintf
2013-10-12 18:33:21 -04:00

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#ifndef _MSC_VER
#include <stdbool.h>
#endif
#include <stddef.h>
#include <stdarg.h>
#include <stdio.h>
#ifdef _MSC_VER
#define snprintf _snprintf
#endif
#ifdef _XBOX1
#include <xtl.h>
#endif
#include "shared.h"
#include "libretro.h"
#include "state.h"
#include "genesis.h"
#include "md_ntsc.h"
#include "sms_ntsc.h"
sms_ntsc_t *sms_ntsc;
md_ntsc_t *md_ntsc;
static int vwidth;
static int vheight;
unsigned retro_api_version(void) { return RETRO_API_VERSION; }
static retro_video_refresh_t video_cb;
static retro_input_poll_t input_poll_cb;
static retro_input_state_t input_state_cb;
static retro_environment_t environ_cb;
static retro_audio_sample_batch_t audio_batch_cb;
void retro_set_environment(retro_environment_t cb)
{
static const struct retro_variable vars[] = {
{ "blargg_ntsc_filter", "Blargg NTSC filter; disabled|monochrome|composite|svideo|rgb" },
{ "overscan", "Overscan mode; 0|1|2|3" },
{ "gg_extra", "Game Gear extended screen; disabled|enabled" },
{ NULL, NULL },
};
environ_cb = cb;
cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void*)vars);
}
void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; }
void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; }
void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; }
void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; }
void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; }
struct bind_conv
{
int retro;
int genesis;
};
static struct bind_conv binds[] = {
{ RETRO_DEVICE_ID_JOYPAD_B, INPUT_B },
{ RETRO_DEVICE_ID_JOYPAD_A, INPUT_C },
{ RETRO_DEVICE_ID_JOYPAD_X, INPUT_Y },
{ RETRO_DEVICE_ID_JOYPAD_Y, INPUT_A },
{ RETRO_DEVICE_ID_JOYPAD_START, INPUT_START },
{ RETRO_DEVICE_ID_JOYPAD_L, INPUT_X },
{ RETRO_DEVICE_ID_JOYPAD_R, INPUT_Z },
{ RETRO_DEVICE_ID_JOYPAD_UP, INPUT_UP },
{ RETRO_DEVICE_ID_JOYPAD_DOWN, INPUT_DOWN },
{ RETRO_DEVICE_ID_JOYPAD_LEFT, INPUT_LEFT },
{ RETRO_DEVICE_ID_JOYPAD_RIGHT, INPUT_RIGHT },
{ RETRO_DEVICE_ID_JOYPAD_SELECT, INPUT_MODE },
};
static char g_rom_dir[1024];
char GG_ROM[256];
char AR_ROM[256];
char SK_ROM[256];
char SK_UPMEM[256];
char GG_BIOS[256];
char MS_BIOS_EU[256];
char MS_BIOS_JP[256];
char MS_BIOS_US[256];
char CD_BIOS_EU[256];
char CD_BIOS_US[256];
char CD_BIOS_JP[256];
char DEFAULT_PATH[1024];
char CD_BRAM_JP[256];
char CD_BRAM_US[256];
char CD_BRAM_EU[256];
char CART_BRAM[256];
/* Mega CD backup RAM stuff */
static uint32_t brm_crc[2];
static uint8_t brm_format[0x40] =
{
0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x00,0x00,0x00,0x00,0x40,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x53,0x45,0x47,0x41,0x5f,0x43,0x44,0x5f,0x52,0x4f,0x4d,0x00,0x01,0x00,0x00,0x00,
0x52,0x41,0x4d,0x5f,0x43,0x41,0x52,0x54,0x52,0x49,0x44,0x47,0x45,0x5f,0x5f,0x5f
};
/************************************
* Genesis Plus implementation
************************************/
#define CHUNKSIZE (0x10000)
void error(char * msg, ...)
{
#ifndef _XBOX1
va_list ap;
va_start(ap, msg);
vfprintf(stderr, msg, ap);
va_end(ap);
#endif
}
int load_archive(char *filename, unsigned char *buffer, int maxsize, char *extension)
{
int size = 0;
char in[CHUNKSIZE];
char msg[64] = "Unable to open file";
/* Open file */
FILE *fd = fopen(filename, "rb");
/* Master System & Game Gear BIOS are optional files */
if (!strcmp(filename,MS_BIOS_US) || !strcmp(filename,MS_BIOS_EU) || !strcmp(filename,MS_BIOS_JP) || !strcmp(filename,GG_BIOS))
{
/* disable all messages */
}
/* Mega CD BIOS are required files */
if (!strcmp(filename,CD_BIOS_US) || !strcmp(filename,CD_BIOS_EU) || !strcmp(filename,CD_BIOS_JP))
{
snprintf(msg, sizeof(msg), "Unable to open CD BIOS: %s", filename);
}
if (!fd)
{
fprintf(stderr, "ERROR - %s.\n", msg);
return 0;
}
/* Read first chunk */
fread(in, CHUNKSIZE, 1, fd);
{
int left;
/* Get file size */
fseek(fd, 0, SEEK_END);
size = ftell(fd);
fseek(fd, 0, SEEK_SET);
/* size limit */
if(size > maxsize)
{
fclose(fd);
fprintf(stderr, "ERROR - File is too large.\n");
return 0;
}
sprintf((char *)msg,"Loading %d bytes ...", size);
fprintf(stderr, "INFORMATION - %s\n", msg);
/* filename extension */
if (extension)
{
memcpy(extension, &filename[strlen(filename) - 3], 3);
extension[3] = 0;
}
/* Read into buffer */
left = size;
while (left > CHUNKSIZE)
{
fread(buffer, CHUNKSIZE, 1, fd);
buffer += CHUNKSIZE;
left -= CHUNKSIZE;
}
/* Read remaining bytes */
fread(buffer, left, 1, fd);
}
/* Close file */
fclose(fd);
/* Return loaded ROM size */
return size;
}
static uint16_t bitmap_data_[1024 * 512];
static void init_bitmap(void)
{
memset(&bitmap, 0, sizeof(bitmap));
bitmap.width = 1024;
bitmap.height = 512;
bitmap.pitch = bitmap.width * sizeof(uint16_t);
bitmap.data = (uint8_t *)bitmap_data_;
bitmap.viewport.w = 0;
bitmap.viewport.h = 0;
bitmap.viewport.x = 0;
bitmap.viewport.y = 0;
}
#define CONFIG_VERSION "GENPLUS-GX 1.7.4"
static void config_default(void)
{
/* version TAG */
strncpy(config.version,CONFIG_VERSION,16);
/* sound options */
config.psg_preamp = 150;
config.fm_preamp = 100;
config.hq_fm = 1;
config.psgBoostNoise = 1;
config.filter = 0;
config.lp_range = 0x9999; /* 0.6 in 16.16 fixed point */
config.low_freq = 880;
config.high_freq = 5000;
config.lg = 1.0;
config.mg = 1.0;
config.hg = 1.0;
config.dac_bits = 14;
config.ym2413 = 2; /* AUTO */
config.mono = 0;
/* system options */
config.system = 0; /* AUTO */
config.region_detect = 0; /* AUTO */
config.vdp_mode = 0; /* AUTO */
config.master_clock = 0; /* AUTO */
config.force_dtack = 0;
config.addr_error = 1;
config.bios = 0;
config.lock_on = 0;
config.hot_swap = 0;
/* video options */
config.overscan = 0; /* 3 == FULL */
config.gg_extra = 0; /* 1 = show extended Game Gear screen (256x192) */
config.ntsc = 0;
config.render = 0;
}
/* these values are used for libretro reporting too */
static const double pal_fps = 53203424.0 / (3420.0 * 313.0);
static const double ntsc_fps = 53693175.0 / (3420.0 * 262.0);
static void init_audio(void)
{
audio_init(44100, 0);
}
static void configure_controls(void)
{
unsigned i;
switch (system_hw)
{
case SYSTEM_MD:
case SYSTEM_MCD:
for(i = 0; i < MAX_INPUTS; i++)
{
config.input[i].padtype = DEVICE_PAD6B;
}
input.system[0] = SYSTEM_MD_GAMEPAD;
input.system[1] = SYSTEM_MD_GAMEPAD;
break;
case SYSTEM_GG:
case SYSTEM_SMS:
input.system[0] = SYSTEM_MS_GAMEPAD;
input.system[1] = SYSTEM_MS_GAMEPAD;
break;
default:
break;
}
}
/* Mega CD backup RAM specific */
static void bram_load(void)
{
FILE *fp;
/* automatically load internal backup RAM */
switch (region_code)
{
case REGION_JAPAN_NTSC:
fp = fopen(CD_BRAM_JP, "rb");
break;
case REGION_EUROPE:
fp = fopen(CD_BRAM_EU, "rb");
break;
case REGION_USA:
fp = fopen(CD_BRAM_US, "rb");
break;
default:
return;
}
if (fp != NULL)
{
fread(scd.bram, 0x2000, 1, fp);
fclose(fp);
/* update CRC */
brm_crc[0] = crc32(0, scd.bram, 0x2000);
}
else
{
/* force internal backup RAM format (does not use previous region backup RAM) */
scd.bram[0x1fff] = 0;
}
/* check if internal backup RAM is correctly formatted */
if (memcmp(scd.bram + 0x2000 - 0x20, brm_format + 0x20, 0x20))
{
/* clear internal backup RAM */
memset(scd.bram, 0x00, 0x2000 - 0x40);
/* internal Backup RAM size fields */
brm_format[0x10] = brm_format[0x12] = brm_format[0x14] = brm_format[0x16] = 0x00;
brm_format[0x11] = brm_format[0x13] = brm_format[0x15] = brm_format[0x17] = (sizeof(scd.bram) / 64) - 3;
/* format internal backup RAM */
memcpy(scd.bram + 0x2000 - 0x40, brm_format, 0x40);
/* clear CRC to force file saving (in case previous region backup RAM was also formatted) */
brm_crc[0] = 0;
}
/* automatically load cartridge backup RAM (if enabled) */
if (scd.cartridge.id)
{
fp = fopen(CART_BRAM, "rb");
if (fp != NULL)
{
int filesize = scd.cartridge.mask + 1;
int done = 0;
/* Read into buffer (2k blocks) */
while (filesize > CHUNKSIZE)
{
fread(scd.cartridge.area + done, CHUNKSIZE, 1, fp);
done += CHUNKSIZE;
filesize -= CHUNKSIZE;
}
/* Read remaining bytes */
if (filesize)
{
fread(scd.cartridge.area + done, filesize, 1, fp);
}
/* close file */
fclose(fp);
/* update CRC */
brm_crc[1] = crc32(0, scd.cartridge.area, scd.cartridge.mask + 1);
}
/* check if cartridge backup RAM is correctly formatted */
if (memcmp(scd.cartridge.area + scd.cartridge.mask + 1 - 0x20, brm_format + 0x20, 0x20))
{
/* clear cartridge backup RAM */
memset(scd.cartridge.area, 0x00, scd.cartridge.mask + 1);
/* Cartridge Backup RAM size fields */
brm_format[0x10] = brm_format[0x12] = brm_format[0x14] = brm_format[0x16] = (((scd.cartridge.mask + 1) / 64) - 3) >> 8;
brm_format[0x11] = brm_format[0x13] = brm_format[0x15] = brm_format[0x17] = (((scd.cartridge.mask + 1) / 64) - 3) & 0xff;
/* format cartridge backup RAM */
memcpy(scd.cartridge.area + scd.cartridge.mask + 1 - 0x40, brm_format, 0x40);
}
}
}
static void bram_save(void)
{
FILE *fp;
/* verify that internal backup RAM has been modified */
if (crc32(0, scd.bram, 0x2000) != brm_crc[0])
{
/* check if it is correctly formatted before saving */
if (!memcmp(scd.bram + 0x2000 - 0x20, brm_format + 0x20, 0x20))
{
switch (region_code)
{
case REGION_JAPAN_NTSC:
fp = fopen(CD_BRAM_JP, "wb");
break;
case REGION_EUROPE:
fp = fopen(CD_BRAM_EU, "wb");
break;
case REGION_USA:
fp = fopen(CD_BRAM_US, "wb");
break;
default:
return;
}
if (fp != NULL)
{
fwrite(scd.bram, 0x2000, 1, fp);
fclose(fp);
/* update CRC */
brm_crc[0] = crc32(0, scd.bram, 0x2000);
}
}
}
/* verify that cartridge backup RAM has been modified */
if (scd.cartridge.id && (crc32(0, scd.cartridge.area, scd.cartridge.mask + 1) != brm_crc[1]))
{
/* check if it is correctly formatted before saving */
if (!memcmp(scd.cartridge.area + scd.cartridge.mask + 1 - 0x20, brm_format + 0x20, 0x20))
{
fp = fopen(CART_BRAM, "wb");
if (fp != NULL)
{
int filesize = scd.cartridge.mask + 1;
int done = 0;
/* Write to file (2k blocks) */
while (filesize > CHUNKSIZE)
{
fwrite(scd.cartridge.area + done, CHUNKSIZE, 1, fp);
done += CHUNKSIZE;
filesize -= CHUNKSIZE;
}
/* Write remaining bytes */
if (filesize)
{
fwrite(scd.cartridge.area + done, filesize, 1, fp);
}
/* Close file */
fclose(fp);
/* update CRC */
brm_crc[1] = crc32(0, scd.cartridge.area, scd.cartridge.mask + 1);
}
}
}
}
/************************************
* libretro implementation
************************************/
static struct retro_system_av_info g_av_info;
void retro_get_system_info(struct retro_system_info *info)
{
info->library_name = "Genesis Plus GX";
info->library_version = "v1.7.4";
info->valid_extensions = "md|smd|bin|cue|gen|iso|sms|gg|sg";
info->block_extract = false;
info->need_fullpath = true;
}
void retro_get_system_av_info(struct retro_system_av_info *info)
{
*info = g_av_info;
}
void retro_set_controller_port_device(unsigned port, unsigned device)
{
(void)port;
(void)device;
}
size_t retro_serialize_size(void) { return STATE_SIZE; }
bool retro_serialize(void *data, size_t size)
{
if (size != STATE_SIZE)
return FALSE;
state_save(data);
return TRUE;
}
bool retro_unserialize(const void *data, size_t size)
{
if (size != STATE_SIZE)
return FALSE;
state_load((uint8_t*)data);
return TRUE;
}
void retro_cheat_reset(void) {}
void retro_cheat_set(unsigned index, bool enabled, const char *code)
{
(void)index;
(void)enabled;
(void)code;
}
static void extract_directory(char *buf, const char *path, size_t size)
{
char *base;
strncpy(buf, path, size - 1);
buf[size - 1] = '\0';
base = strrchr(buf, '/');
if (!base)
base = strrchr(buf, '\\');
if (base)
*base = '\0';
else
buf[0] = '\0';
}
static void retro_set_viewport_dimensions(void)
{
unsigned i;
struct retro_game_geometry geom;
struct retro_system_timing timing;
/* HACK: Emulate 10 dummy frames to figure out the real viewport dimensions of the game. */
if((system_hw & SYSTEM_PBC) == SYSTEM_MD || (system_hw & SYSTEM_PBC) == SYSTEM_MCD)
for (i = 0; i < 10; i++)
system_frame_gen(0);
else
for (i = 0; i < 10; i++)
system_frame_sms(0);
vwidth = bitmap.viewport.w + (bitmap.viewport.x * 2);
vheight = bitmap.viewport.h + (bitmap.viewport.y * 2);
retro_reset();
if (config.ntsc)
{
if (system_hw & SYSTEM_MD)
vwidth = MD_NTSC_OUT_WIDTH(vwidth);
else
vwidth = SMS_NTSC_OUT_WIDTH(vwidth);
}
geom.aspect_ratio = 4.0 / 3.0;
geom.base_width = vwidth;
geom.base_height = vheight;
geom.max_width = 1024;
geom.max_height = 512;
timing.sample_rate = 44100;
if (vdp_pal)
timing.fps = pal_fps;
else
timing.fps = ntsc_fps;
g_av_info.geometry = geom;
g_av_info.timing = timing;
}
static bool LoadFile(char * filename)
{
int size = 0;
/* check if virtual CD tray was open */
if ((system_hw == SYSTEM_MCD) && (cdd.status == CD_OPEN))
{
/* swap CD image file */
size = cdd_load(filename, (char *)(cdc.ram));
/* update CD header information */
if (!scd.cartridge.boot)
getrominfo((char *)(cdc.ram));
}
/* no CD image file loaded */
if (!size)
{
/* close CD tray to force system reset */
cdd.status = NO_DISC;
/* load game file */
size = load_rom(filename);
}
return size > 0;
}
static void check_variables(void)
{
bool update_viewports = false;
static bool last_ntsc_val_same;
struct retro_variable var = {0};
var.key = "blargg_ntsc_filter";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
{
unsigned orig_value = config.ntsc;
update_viewports = true;
if (strcmp(var.value, "disabled") == 0)
config.ntsc = 0;
else if (strcmp(var.value, "monochrome") == 0)
{
config.ntsc = 1;
sms_ntsc_init(sms_ntsc, &sms_ntsc_monochrome);
md_ntsc_init(md_ntsc, &md_ntsc_monochrome);
}
else if (strcmp(var.value, "composite") == 0)
{
config.ntsc = 1;
sms_ntsc_init(sms_ntsc, &sms_ntsc_composite);
md_ntsc_init(md_ntsc, &md_ntsc_composite);
}
else if (strcmp(var.value, "svideo") == 0)
{
config.ntsc = 1;
sms_ntsc_init(sms_ntsc, &sms_ntsc_svideo);
md_ntsc_init(md_ntsc, &md_ntsc_svideo);
}
else if (strcmp(var.value, "rgb") == 0)
{
config.ntsc = 1;
sms_ntsc_init(sms_ntsc, &sms_ntsc_rgb);
md_ntsc_init(md_ntsc, &md_ntsc_rgb);
}
if (orig_value != config.ntsc)
update_viewports = true;
}
var.key = "overscan";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
{
unsigned orig_value = config.overscan;
if (strcmp(var.value, "0") == 0)
config.overscan = 0;
else if (strcmp(var.value, "1") == 0)
config.overscan = 1;
else if (strcmp(var.value, "2") == 0)
config.overscan = 2;
else if (strcmp(var.value, "3") == 0)
config.overscan = 3;
if (orig_value != config.overscan)
update_viewports = true;
}
var.key = "gg_extra";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
{
unsigned orig_value = config.gg_extra;
if (strcmp(var.value, "disabled") == 0)
config.gg_extra = 0;
else if (strcmp(var.value, "enabled") == 0)
config.gg_extra = 1;
if (orig_value != config.gg_extra)
update_viewports = true;
}
if (update_viewports)
retro_set_viewport_dimensions();
}
bool retro_load_game(const struct retro_game_info *info)
{
const char *full_path;
const char *dir;
char slash;
extract_directory(g_rom_dir, info->path, sizeof(g_rom_dir));
if (!environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) || !dir)
{
fprintf(stderr, "[genplus]: Defaulting system directory to %s.\n", g_rom_dir);
dir = g_rom_dir;
}
#if defined(_WIN32)
slash = '\\';
#else
slash = '/';
#endif
snprintf(CD_BIOS_EU, sizeof(CD_BIOS_EU), "%s%cbios_CD_E.bin", dir, slash);
snprintf(CD_BIOS_US, sizeof(CD_BIOS_US), "%s%cbios_CD_U.bin", dir, slash);
snprintf(CD_BIOS_JP, sizeof(CD_BIOS_JP), "%s%cbios_CD_J.bin", dir, slash);
snprintf(CD_BRAM_EU, sizeof(CD_BRAM_EU), "%s%cscd_E.brm", dir, slash);
snprintf(CD_BRAM_US, sizeof(CD_BRAM_US), "%s%cscd_U.brm", dir, slash);
snprintf(CD_BRAM_JP, sizeof(CD_BRAM_JP), "%s%cscd_J.brm", dir, slash);
snprintf(CART_BRAM, sizeof(CART_BRAM), "%s%ccart.brm", dir, slash);
fprintf(stderr, "Sega CD EU BIOS should be located at: %s\n", CD_BIOS_EU);
fprintf(stderr, "Sega CD US BIOS should be located at: %s\n", CD_BIOS_US);
fprintf(stderr, "Sega CD JP BIOS should be located at: %s\n", CD_BIOS_JP);
fprintf(stderr, "Sega CD EU BRAM is located at: %s\n", CD_BRAM_EU);
fprintf(stderr, "Sega CD US BRAM is located at: %s\n", CD_BRAM_US);
fprintf(stderr, "Sega CD JP BRAM is located at: %s\n", CD_BRAM_JP);
fprintf(stderr, "Sega CD RAM CART is located at: %s\n", CART_BRAM);
snprintf(DEFAULT_PATH, sizeof(DEFAULT_PATH), "%s", g_rom_dir);
config_default();
init_bitmap();
full_path = info->path;
if (!LoadFile((char *)full_path))
return false;
configure_controls();
init_audio();
system_init();
system_reset();
if (system_hw == SYSTEM_MCD)
bram_load();
retro_set_viewport_dimensions();
check_variables();
return TRUE;
}
bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info)
{
(void)game_type;
(void)info;
(void)num_info;
return FALSE;
}
void retro_unload_game(void)
{
if (system_hw == SYSTEM_MCD)
bram_save();
}
unsigned retro_get_region(void) { return vdp_pal ? RETRO_REGION_PAL : RETRO_REGION_NTSC; }
void *retro_get_memory_data(unsigned id)
{
if (!sram.on)
return NULL;
switch (id)
{
case RETRO_MEMORY_SAVE_RAM:
return sram.sram;
default:
return NULL;
}
}
size_t retro_get_memory_size(unsigned id)
{
if (!sram.on)
return 0;
switch (id)
{
case RETRO_MEMORY_SAVE_RAM:
return 0x10000;
default:
return 0;
}
}
void retro_init(void)
{
unsigned level, rgb565;
sms_ntsc = calloc(1, sizeof(sms_ntsc_t));
md_ntsc = calloc(1, sizeof(md_ntsc_t));
level = 1;
environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
#ifdef FRONTEND_SUPPORTS_RGB565
rgb565 = RETRO_PIXEL_FORMAT_RGB565;
if(environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &rgb565))
fprintf(stderr, "Frontend supports RGB565 - will use that instead of XRGB1555.\n");
#endif
}
void retro_deinit(void)
{
audio_shutdown();
free(md_ntsc);
free(sms_ntsc);
}
void retro_reset(void) { system_reset(); }
int16 soundbuffer[3068];
void osd_input_update(void)
{
unsigned res[MAX_INPUTS], i, j;
for(i = 0; i < MAX_INPUTS; i++)
res[i] = 0;
if (!input_poll_cb)
return;
input_poll_cb();
switch (input.system[0])
{
case SYSTEM_MS_GAMEPAD:
case SYSTEM_MD_GAMEPAD:
if(input.dev[0] != NO_DEVICE)
{
for (j = 0; j < sizeof(binds) / sizeof(binds[0]); j++)
{
if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, binds[j].retro))
res[0] |= binds[j].genesis;
}
input.pad[0] = res[0];
}
break;
case SYSTEM_MOUSE:
break;
case SYSTEM_ACTIVATOR:
break;
case SYSTEM_XE_A1P:
break;
case SYSTEM_WAYPLAY:
break;
case SYSTEM_TEAMPLAYER:
break;
case SYSTEM_LIGHTPHASER:
break;
case SYSTEM_PADDLE:
break;
case SYSTEM_SPORTSPAD:
break;
default:
break;
}
switch (input.system[1])
{
case SYSTEM_MS_GAMEPAD:
case SYSTEM_MD_GAMEPAD:
if(input.dev[4] != NO_DEVICE)
{
for (j = 0; j < sizeof(binds) / sizeof(binds[0]); j++)
{
if (input_state_cb(1, RETRO_DEVICE_JOYPAD, 0, binds[j].retro))
res[1] |= binds[j].genesis;
input.pad[4] = res[1];
}
}
break;
case SYSTEM_MOUSE:
break;
case SYSTEM_ACTIVATOR:
break;
case SYSTEM_XE_A1P:
break;
case SYSTEM_TEAMPLAYER:
break;
case SYSTEM_LIGHTPHASER:
break;
case SYSTEM_PADDLE:
break;
case SYSTEM_SPORTSPAD:
break;
default:
break;
}
if (cart.special & HW_J_CART)
{
for(i = 5; i < 7; i++)
{
for (j = 0; j < sizeof(binds) / sizeof(binds[0]); j++)
{
if (input_state_cb(i-3, RETRO_DEVICE_JOYPAD, 0, binds[j].retro))
res[i-3] |= binds[j].genesis;
input.pad[i] = res[i-3];
}
}
}
}
void retro_run(void)
{
int aud;
bool updated = false;
if (system_hw == SYSTEM_MCD)
system_frame_scd(0);
else if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
system_frame_gen(0);
else
system_frame_sms(0);
video_cb(bitmap.data, config.ntsc ? vwidth : (bitmap.viewport.w + (bitmap.viewport.x * 2)), bitmap.viewport.h + (bitmap.viewport.y * 2), bitmap.pitch);
aud = audio_update(soundbuffer) << 1;
audio_batch_cb(soundbuffer, aud >> 1);
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
check_variables();
}
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