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mame2003.c
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mame2003.c
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/*********************************************************************
mame2003.c
an updated port of Xmame 0.78 to the libretro API
*********************************************************************/
#include <stdint.h>
#include <string/stdstring.h>
#include <libretro.h>
#include <file/file_path.h>
#include "mame.h"
#include "driver.h"
#include "state.h"
#include "log.h"
#include "input.h"
#include "inptport.h"
#include "fileio.h"
#include "controls.h"
#include "usrintrf.h"
int gotFrame;
static const struct GameDriver *game_driver;
static float delta_samples;
int samples_per_frame = 0;
int orig_samples_per_frame =0;
short* samples_buffer;
short* conversion_buffer;
int usestereo = 1;
int16_t prev_pointer_x;
int16_t prev_pointer_y;
unsigned retroColorMode;
unsigned long lastled = 0;
extern const struct KeyboardInfo retroKeys[];
extern int retroKeyState[512];
int retroJsState[109]= {0}; // initialise to zero - we are only reading 4 players atm
extern int16_t mouse_x[4];
extern int16_t mouse_y[4];
extern int16_t analogjoy[4][4];
struct ipd *default_inputs; /* pointer the array of structs with default MAME input mappings and labels */
static struct retro_input_descriptor empty[] = { { 0 } };
retro_log_printf_t log_cb;
static struct retro_message frontend_message;
struct retro_perf_callback perf_cb;
retro_environment_t environ_cb = NULL;
retro_video_refresh_t video_cb = NULL;
static retro_input_poll_t poll_cb = NULL;
static retro_input_state_t input_cb = NULL;
static retro_audio_sample_batch_t audio_batch_cb = NULL;
retro_set_led_state_t led_state_cb = NULL;
bool old_dual_joystick_state = false; /* used to track when this core option changes */
/******************************************************************************
Core options
******************************************************************************/
enum CORE_OPTIONS/* controls the order in which core options appear. common, important, and content-specific options should go earlier on the list */
{
OPT_4WAY = 0,
OPT_MOUSE_DEVICE,
OPT_CROSSHAIR_ENABLED,
OPT_SKIP_DISCLAIMER,
OPT_SKIP_WARNINGS,
OPT_DISPLAY_SETUP,
OPT_NEOGEO_BIOS,
OPT_STV_BIOS,
OPT_USE_ALT_SOUND,
OPT_SHARE_DIAL,
OPT_DUAL_JOY,
OPT_RSTICK_BTNS,
OPT_VECTOR_RESOLUTION,
OPT_VECTOR_ANTIALIAS,
OPT_VECTOR_BEAM,
OPT_VECTOR_TRANSLUCENCY,
OPT_VECTOR_FLICKER,
OPT_VECTOR_INTENSITY,
OPT_DCS_SPEEDHACK,
OPT_CORE_SYS_SUBFOLDER,
OPT_CORE_SAVE_SUBFOLDER,
OPT_TATE_MODE,
OPT_INPUT_INTERFACE,
OPT_BRIGHTNESS,
OPT_GAMMA,
OPT_FRAMESKIP,
OPT_SAMPLE_RATE,
OPT_MAME_REMAPPING,
OPT_ARTWORK,
OPT_ART_RESOLUTION,
OPT_NVRAM_BOOTSTRAP,
OPT_Cheat_Input_Ports,
OPT_Machine_Timing,
OPT_end /* dummy last entry */
};
static struct retro_variable_default default_options[OPT_end + 1]; /* need the plus one for the NULL entries at the end */
static struct retro_variable current_options[OPT_end + 1];
/******************************************************************************
private function prototypes
******************************************************************************/
static void set_content_flags(void);
static void init_core_options(void);
void init_default(struct retro_variable_default *option, const char *key, const char *value);
static void update_variables(bool first_time);
static void set_variables(bool first_time);
static struct retro_variable_default *spawn_effective_option(int option_index);
static void check_system_specs(void);
void retro_describe_controls(void);
int get_mame_ctrl_id(int display_idx, int retro_ID);
/******************************************************************************
frontend message interface
******************************************************************************/
void frontend_message_cb(const char *message_string, unsigned frames_to_display)
{
frontend_message.msg = message_string;
frontend_message.frames = frames_to_display;
environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, &frontend_message);
}
/******************************************************************************
implementation of key libretro functions
******************************************************************************/
void retro_init (void)
{
struct retro_log_callback log;
if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log))
log_cb = log.log;
else
log_cb = NULL;
#ifdef LOG_PERFORMANCE
environ_cb(RETRO_ENVIRONMENT_GET_PERF_INTERFACE, &perf_cb);
#endif
check_system_specs();
}
static void check_system_specs(void)
{
/* Should we set level variably like the API asks? Are there any frontends that implement this? */
unsigned level = 10; /* For stub purposes, set to the highest level */
environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
}
void retro_set_environment(retro_environment_t cb)
{
environ_cb = cb;
}
/* static void init_core_options(void)
*
* Note that core options are not presented in order they are initialized here,
* but rather by their order in the OPT_ enum
*/
static void init_core_options(void)
{
init_default(&default_options[OPT_4WAY], APPNAME"_four_way_emulation", "4-way joystick emulation on 8-way joysticks; disabled|enabled");
#if defined(__IOS__)
init_default(&default_options[OPT_MOUSE_DEVICE], APPNAME"_mouse_device", "Mouse Device; pointer|mouse|disabled");
#else
init_default(&default_options[OPT_MOUSE_DEVICE], APPNAME"_mouse_device", "Mouse Device; mouse|pointer|disabled");
#endif
init_default(&default_options[OPT_CROSSHAIR_ENABLED], APPNAME"_crosshair_enabled", "Show Lightgun crosshair; enabled|disabled");
init_default(&default_options[OPT_SKIP_DISCLAIMER], APPNAME"_skip_disclaimer", "Skip Disclaimer; disabled|enabled");
init_default(&default_options[OPT_SKIP_WARNINGS], APPNAME"_skip_warnings", "Skip Warnings; disabled|enabled");
init_default(&default_options[OPT_DISPLAY_SETUP], APPNAME"_display_setup", "Display MAME menu; disabled|enabled");
init_default(&default_options[OPT_BRIGHTNESS], APPNAME"_brightness", "Brightness; 1.0|0.2|0.3|0.4|0.5|0.6|0.7|0.8|0.9|1.1|1.2|1.3|1.4|1.5|1.6|1.7|1.8|1.9|2.0");
init_default(&default_options[OPT_GAMMA], APPNAME"_gamma", "Gamma correction; 1.2|0.5|0.6|0.7|0.8|0.9|1.1|1.2|1.3|1.4|1.5|1.6|1.7|1.8|1.9|2.0");
init_default(&default_options[OPT_ARTWORK], APPNAME"_display_artwork", "Display artwork (Restart core); enabled|disabled");
init_default(&default_options[OPT_ART_RESOLUTION], APPNAME"_art_resolution", "Artwork resolution multiplier (Restart core); 2|1");
init_default(&default_options[OPT_NEOGEO_BIOS], APPNAME"_neogeo_bios", "Specify Neo Geo BIOS (Restart core); default|euro|euro-s1|us|us-e|asia|japan|japan-s2|unibios33|unibios20|unibios13|unibios11|unibios10|debug|asia-aes");
init_default(&default_options[OPT_STV_BIOS], APPNAME"_stv_bios", "Specify Sega ST-V BIOS (Restart core); default|japan|japana|us|japan_b|taiwan|europe");
init_default(&default_options[OPT_USE_ALT_SOUND], APPNAME"_use_alt_sound", "Use CD soundtrack (Restart core); enabled|disabled");
init_default(&default_options[OPT_SHARE_DIAL], APPNAME"_dialsharexy", "Share 2 player dial controls across one X/Y device; disabled|enabled");
init_default(&default_options[OPT_DUAL_JOY], APPNAME"_dual_joysticks", "Dual Joystick Mode (!NETPLAY); disabled|enabled");
init_default(&default_options[OPT_RSTICK_BTNS], APPNAME"_rstick_to_btns", "Mame Right Stick to Buttons; enabled|disabled");
init_default(&default_options[OPT_TATE_MODE], APPNAME"_tate_mode", "TATE Mode; disabled|enabled");
init_default(&default_options[OPT_VECTOR_RESOLUTION], APPNAME"_vector_resolution_multiplier",
"Vector resolution multiplier (Restart core); 1|2|3|4|5|6|7|8|9|10");
init_default(&default_options[OPT_VECTOR_ANTIALIAS], APPNAME"_vector_antialias", "Vector antialiasing; enabled|disabled");
init_default(&default_options[OPT_VECTOR_BEAM], APPNAME"_vector_beam_width", "Vector beam width (only with antialiasing); 1.2|1|1.4|1.6|1.8|2|2.5|3|4|5|6|7|8|9|10|11|12");
init_default(&default_options[OPT_VECTOR_TRANSLUCENCY], APPNAME"_vector_translucency", "Vector translucency; enabled|disabled");
init_default(&default_options[OPT_VECTOR_FLICKER], APPNAME"_vector_flicker", "Vector flicker; 20|0|10|30|40|50|60|70|80|90|100");
init_default(&default_options[OPT_VECTOR_INTENSITY], APPNAME"_vector_intensity", "Vector intensity; 1.5|0.5|1|2|2.5|3");
init_default(&default_options[OPT_NVRAM_BOOTSTRAP], APPNAME"_nvram_bootstraps", "NVRAM Bootstraps; enabled|disabled");
init_default(&default_options[OPT_SAMPLE_RATE], APPNAME"_sample_rate", "Sample Rate (KHz); 48000|8000|11025|22050|30000|44100|");
init_default(&default_options[OPT_DCS_SPEEDHACK], APPNAME"_dcs_speedhack", "DCS Speedhack; enabled|disabled");
init_default(&default_options[OPT_INPUT_INTERFACE], APPNAME"_input_interface", "Input interface; retroarch|keyboard|mame");
init_default(&default_options[OPT_MAME_REMAPPING], APPNAME"_mame_remapping", "Legacy Remapping (!NETPLAY); disabled|enabled");
init_default(&default_options[OPT_FRAMESKIP], APPNAME"_frameskip", "Frameskip; 0|1|2|3|4|5");
init_default(&default_options[OPT_CORE_SYS_SUBFOLDER], APPNAME"_core_sys_subfolder", "Locate system files within a subfolder; enabled|disabled"); /* This should be probably handled by the frontend and not by cores per discussions in Fall 2018 but RetroArch for example doesn't provide this as an option. */
init_default(&default_options[OPT_CORE_SAVE_SUBFOLDER], APPNAME"_core_save_subfolder", "Locate save files within a subfolder; enabled|disabled"); /* This is already available as an option in RetroArch although it is left enabled by default as of November 2018 for consistency with past practice. At least for now.*/
init_default(&default_options[OPT_Cheat_Input_Ports], APPNAME"_cheat_input ports", "Dip switch/Cheat input ports; disabled|enabled");
init_default(&default_options[OPT_Machine_Timing], APPNAME"_machine_timing", "Bypass audio skew (Restart core); enabled|disabled");
init_default(&default_options[OPT_end], NULL, NULL);
set_variables(true);
}
static void set_variables(bool first_time)
{
static struct retro_variable_default effective_defaults[OPT_end + 1];
static unsigned effective_options_count; /* the number of core options in effect for the current content */
int option_index = 0;
for(option_index = 0; option_index < (OPT_end + 1); option_index++)
{
switch(option_index)
{
case OPT_4WAY:
if(options.content_flags[CONTENT_JOYSTICK_DIRECTIONS] != 4)
continue;
break;
case OPT_CROSSHAIR_ENABLED:
if(!options.content_flags[CONTENT_LIGHTGUN])
continue;
break;
case OPT_STV_BIOS:
if(!options.content_flags[CONTENT_STV])
continue; /* only offer BIOS selection when it is relevant */
break;
case OPT_NEOGEO_BIOS:
if(!options.content_flags[CONTENT_NEOGEO])
continue; /* only offer BIOS selection when it is relevant */
break;
case OPT_USE_ALT_SOUND:
if(!options.content_flags[CONTENT_ALT_SOUND])
continue;
break;
case OPT_SHARE_DIAL:
if(!options.content_flags[CONTENT_DIAL])
continue;
break;
case OPT_DUAL_JOY:
if(!options.content_flags[CONTENT_DUAL_JOYSTICK])
continue;
break;
case OPT_VECTOR_RESOLUTION:
case OPT_VECTOR_ANTIALIAS:
case OPT_VECTOR_TRANSLUCENCY:
case OPT_VECTOR_BEAM:
case OPT_VECTOR_FLICKER:
case OPT_VECTOR_INTENSITY:
if(!options.content_flags[CONTENT_VECTOR])
continue;
break;
case OPT_DCS_SPEEDHACK:
if(!options.content_flags[CONTENT_DCS_SPEEDHACK])
continue;
break;
case OPT_NVRAM_BOOTSTRAP:
if(!options.content_flags[CONTENT_NVRAM_BOOTSTRAP])
continue;
break;
}
effective_defaults[effective_options_count] = first_time ? default_options[option_index] : *spawn_effective_option(option_index);
effective_options_count++;
}
environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void*)effective_defaults);
}
static struct retro_variable_default *spawn_effective_option(int option_index)
{
static struct retro_variable_default *encoded_option = NULL;
/* implementing this function will allow the core to change a core option within the core and then report that that change to the frontend
* currently core options only flow one way: from the frontend to mame2003-plus
*
* search for the string "; " as the delimiter between the option display name and the values
* stringify the current value for this option
* see if the current option string is already listed first in the original default --
* if the current selected option is not in the original defaults string at all
* log an error message and bail. that shouldn't be possible.
* is the currently selected option the first in the default pipe-delimited list?
* if so, just return default_options[option_index]
* else
* create a copy of default_options[option_index].defaults_string.
* First add the stringified current option as the first in the pipe-delimited list for this copied string
* then remove the option from wherever it was originally in the defaults string
*/
return encoded_option;
}
void init_default(struct retro_variable_default *def, const char *key, const char *label_and_values)
{
def->key = key;
def->defaults_string = label_and_values;
}
static void update_variables(bool first_time)
{
struct retro_led_interface ledintf;
struct retro_variable var;
int index;
bool reset_control_descriptions = false;
for(index = 0; index < OPT_end; index++)
{
var.value = NULL;
var.key = default_options[index].key;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && !string_is_empty(var.value)) /* the frontend sends a value for this core option */
{
current_options[index].value = var.value; /* keep the state of core options matched with the frontend */
switch(index)
{
case OPT_INPUT_INTERFACE:
if(strcmp(var.value, "retroarch") == 0)
options.input_interface = RETRO_DEVICE_JOYPAD;
else if(strcmp(var.value, "keyboard") == 0)
options.input_interface = RETRO_DEVICE_KEYBOARD;
else
options.input_interface = RETRO_DEVICE_KEYBOARD + RETRO_DEVICE_JOYPAD;
break;
case OPT_4WAY:
if( (strcmp(var.value, "enabled") == 0) && (options.content_flags[CONTENT_JOYSTICK_DIRECTIONS] == 4) )
{
if(!options.restrict_4_way) /* the option has just been toggled to "enabled" */
{
options.restrict_4_way = true;
reset_control_descriptions = true; /* games with rotated joysticks send different control descriptions in 4-way restrictor mode */
}
}
else
{
if(options.restrict_4_way) /* the option has just been toggled to "disabled" */
{
options.restrict_4_way = false;
reset_control_descriptions = true; /* games with rotated joysticks send different control descriptions in 4-way restrictor mode */
}
}
break;
case OPT_MOUSE_DEVICE:
if(strcmp(var.value, "pointer") == 0)
options.mouse_device = RETRO_DEVICE_POINTER;
else if(strcmp(var.value, "mouse") == 0)
options.mouse_device = RETRO_DEVICE_MOUSE;
else
options.mouse_device = 0;
break;
case OPT_CROSSHAIR_ENABLED:
if(strcmp(var.value, "enabled") == 0)
options.crosshair_enable = 1;
else
options.crosshair_enable = 0;
break;
case OPT_SKIP_DISCLAIMER:
if(strcmp(var.value, "enabled") == 0)
options.skip_disclaimer = true;
else
options.skip_disclaimer = false;
break;
case OPT_SKIP_WARNINGS:
if(strcmp(var.value, "enabled") == 0)
options.skip_warnings = true;
else
options.skip_warnings = false;
break;
case OPT_DISPLAY_SETUP:
if(strcmp(var.value, "enabled") == 0)
options.display_setup = 1;
else
options.display_setup = 0;
break;
case OPT_BRIGHTNESS:
options.brightness = atof(var.value);
if(!first_time)
palette_set_global_brightness(options.brightness);
break;
case OPT_GAMMA:
options.gamma = atof(var.value);
if(!first_time)
palette_set_global_gamma(options.gamma);
break;
/* TODO: Add overclock option. Below is the code from the old MAME osd to help process the core option.*/
/*
double overclock;
int cpu, doallcpus = 0, oc;
if (code_pressed(KEYCODE_LSHIFT) || code_pressed(KEYCODE_RSHIFT))
doallcpus = 1;
if (!code_pressed(KEYCODE_LCONTROL) && !code_pressed(KEYCODE_RCONTROL))
increment *= 5;
if( increment :
overclock = timer_get_overclock(arg);
overclock += 0.01 * increment;
if (overclock < 0.01) overclock = 0.01;
if (overclock > 2.0) overclock = 2.0;
if( doallcpus )
for( cpu = 0; cpu < cpu_gettotalcpu(); cpu++ )
timer_set_overclock(cpu, overclock);
else
timer_set_overclock(arg, overclock);
}
oc = 100 * timer_get_overclock(arg) + 0.5;
if( doallcpus )
sprintf(buf,"%s %s %3d%%", ui_getstring (UI_allcpus), ui_getstring (UI_overclock), oc);
else
sprintf(buf,"%s %s%d %3d%%", ui_getstring (UI_overclock), ui_getstring (UI_cpu), arg, oc);
displayosd(bitmap,buf,oc/2,100/2);
*/
case OPT_ARTWORK:
if(strcmp(var.value, "enabled") == 0)
options.use_artwork = ARTWORK_USE_ALL;
else
options.use_artwork = ARTWORK_USE_NONE;
break;
case OPT_ART_RESOLUTION:
options.artwork_res = atoi(var.value);
break;
case OPT_STV_BIOS:
if(!options.content_flags[CONTENT_STV])
break;
if(options.content_flags[CONTENT_DIEHARD]) /* catch required bios for this one game. */
options.bios = "us";
else
options.bios = (strcmp(var.value, "default") == 0) ? NULL : var.value;
break;
case OPT_NEOGEO_BIOS:
if(!options.content_flags[CONTENT_NEOGEO])
break;
options.bios = (strcmp(var.value, "default") == 0) ? NULL : var.value;
break;
case OPT_USE_ALT_SOUND:
if(options.content_flags[CONTENT_ALT_SOUND])
{
if(strcmp(var.value, "enabled") == 0)
options.use_samples = true;
else
options.use_samples = false;
}
break;
case OPT_SHARE_DIAL:
if(options.content_flags[CONTENT_DIAL])
{
if(strcmp(var.value, "enabled") == 0)
options.dial_share_xy = 1;
else
options.dial_share_xy = 0;
break;
}
else
{
options.dial_share_xy = 0;
break;
}
case OPT_DUAL_JOY:
if(options.content_flags[CONTENT_DUAL_JOYSTICK])
{
if(strcmp(var.value, "enabled") == 0)
options.dual_joysticks = true;
else
options.dual_joysticks = false;
if(first_time)
old_dual_joystick_state = options.dual_joysticks;
else if(old_dual_joystick_state != options.dual_joysticks)
{
char cfg_file_path[PATH_MAX_LENGTH];
char buffer[PATH_MAX_LENGTH];
osd_get_path(FILETYPE_CONFIG, buffer);
snprintf(cfg_file_path, PATH_MAX_LENGTH, "%s%s%s.cfg", buffer, path_default_slash(), options.romset_filename_noext);
buffer[0] = '\0';
if(path_is_valid(cfg_file_path))
{
if(!remove(cfg_file_path) == 0)
snprintf(buffer, PATH_MAX_LENGTH, "%s.cfg exists but cannot be deleted!\n", options.romset_filename_noext);
else
snprintf(buffer, PATH_MAX_LENGTH, "%s.cfg exists but cannot be deleted!\n", options.romset_filename_noext);
}
log_cb(RETRO_LOG_INFO, LOGPRE "%s Reloading input maps.\n", buffer);
usrintf_showmessage_secs(4, "%s Reloading input maps.", buffer);
load_input_port_settings(); /* this may just read the active mappings from memory (ie the same ones we're trying to delete) rather than resetting them to default */
/* should use reset_driver_inputs() if that function is ever completed */
old_dual_joystick_state = options.dual_joysticks;
}
break;
}
else /* always disabled except when options.content_flags[CONTENT_DUAL_JOYSTICK] has been set to true */
{
options.dual_joysticks = false;
break;
}
case OPT_RSTICK_BTNS:
if(strcmp(var.value, "enabled") == 0)
options.rstick_to_btns = 1;
else
options.rstick_to_btns = 0;
break;
case OPT_TATE_MODE:
if(strcmp(var.value, "enabled") == 0)
options.tate_mode = 1;
else
options.tate_mode = 0;
break;
case OPT_VECTOR_RESOLUTION:
options.vector_resolution_multiplier = atoi(var.value);
break;
case OPT_VECTOR_ANTIALIAS:
if(strcmp(var.value, "enabled") == 0)
options.antialias = 1; /* integer: 1 to enable antialiasing on vectors _ does not work as of 2018/04/17*/
else
options.antialias = 0;
break;
case OPT_VECTOR_BEAM:
options.beam = atof(var.value); /* float: vector beam width */
break;
case OPT_VECTOR_TRANSLUCENCY:
if(strcmp(var.value, "enabled") == 0)
options.translucency = 1; /* integer: 1 to enable translucency on vectors */
else
options.translucency = 0;
break;
case OPT_VECTOR_FLICKER:
options.vector_flicker = (int)(2.55 * atof(var.value)); /* why 2.55? must be an old family recipe */
break;
case OPT_VECTOR_INTENSITY:
options.vector_intensity_correction = atof(var.value); /* float: vector beam intensity */
break;
case OPT_NVRAM_BOOTSTRAP:
if(strcmp(var.value, "enabled") == 0)
options.nvram_bootstrap = true;
else
options.nvram_bootstrap = false;
break;
case OPT_SAMPLE_RATE:
options.samplerate = atoi(var.value);
break;
case OPT_DCS_SPEEDHACK:
if(strcmp(var.value, "enabled") == 0)
options.activate_dcs_speedhack = 1;
else
options.activate_dcs_speedhack = 0;
break;
case OPT_MAME_REMAPPING:
if(strcmp(var.value, "enabled") == 0)
options.mame_remapping = true;
else
options.mame_remapping = false;
if(!first_time)
setup_menu_init();
break;
case OPT_FRAMESKIP:
options.frameskip = atoi(var.value);
break;
case OPT_CORE_SYS_SUBFOLDER:
if(strcmp(var.value, "enabled") == 0)
options.system_subfolder = true;
else
options.system_subfolder = false;
break;
case OPT_CORE_SAVE_SUBFOLDER:
if(strcmp(var.value, "enabled") == 0)
options.save_subfolder = true;
else
options.save_subfolder = false;
break;
case OPT_Cheat_Input_Ports:
if(strcmp(var.value, "enabled") == 0)
options.cheat_input_ports = true;
else
options.cheat_input_ports = false;
break;
case OPT_Machine_Timing:
if(strcmp(var.value, "enabled") == 0)
options.machine_timing = true;
else
options.machine_timing = false;
break;
}
}
}
if(!options.content_flags[CONTENT_ALT_SOUND])
options.use_samples = true;
ledintf.set_led_state = NULL;
environ_cb(RETRO_ENVIRONMENT_GET_LED_INTERFACE, &ledintf);
led_state_cb = ledintf.set_led_state;
if(reset_control_descriptions) /* one of the option changes has flagged a need to re-describe the controls */
{
retro_describe_controls();
reset_control_descriptions = false;
}
}
void retro_get_system_av_info(struct retro_system_av_info *info)
{
//set the sample rate changes here environ_cb(RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO, &info); opens a new window
//leave the code in place till i figure it out.
mame2003_video_get_geometry(&info->geometry);
if (options.machine_timing)
//by pass audio scew
{
if (Machine->drv->frames_per_second < 60.0 )
info->timing.fps = 60.0;
else
info->timing.fps = Machine->drv->frames_per_second; // qbert is 61 fps
if ( ( Machine->drv->frames_per_second * 1000 < options.samplerate) || (Machine->drv->frames_per_second < 60) )
options.samplerate = Machine->drv->frames_per_second * 1000;
}
else
{
info->timing.fps = Machine->drv->frames_per_second; /* sets the core timing does any game go above 60fps? */
if ( Machine->drv->frames_per_second * 1000 < options.samplerate)
options.samplerate=22050;
}
info->timing.sample_rate = options.samplerate;
}
unsigned retro_api_version(void)
{
return RETRO_API_VERSION;
}
void retro_get_system_info(struct retro_system_info *info)
{
info->library_name = "MAME 2003-Plus";
#ifndef GIT_VERSION
#define GIT_VERSION ""
#endif
info->library_version = GIT_VERSION;
info->valid_extensions = "zip";
info->need_fullpath = true;
info->block_extract = true;
}
#define PAD_MODERN RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 0)
#define PAD_8BUTTON RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 1)
#define PAD_6BUTTON RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 2)
static struct retro_controller_description controllers[] = {
{ "Classic Gamepad", RETRO_DEVICE_JOYPAD },
{ "Modern Fightstick", PAD_MODERN },
{ "8-Button", PAD_8BUTTON },
{ "6-Button", PAD_6BUTTON },
};
static struct retro_controller_description unsupported_controllers[] = {
{ "UNSUPPORTED (Classic Gamepad)", RETRO_DEVICE_JOYPAD },
{ "UNSUPPORTED (Modern Fightstick)", PAD_MODERN },
{ "UNSUPPORTED (8-Button)", PAD_8BUTTON },
{ "UNSUPPORTED (6-Button)", PAD_6BUTTON },
};
static struct retro_controller_info retropad_subdevice_ports[] = {
{ controllers, 4 },
{ controllers, 4 },
{ controllers, 4 },
{ controllers, 4 },
{ controllers, 4 },
{ controllers, 4 },
{ 0 },
};
bool retro_load_game(const struct retro_game_info *game)
{
int driverIndex = 0;
int port_index;
char *driver_lookup = NULL;
static const int uiModes[] = {ROT0, ROT90, ROT180, ROT270};
if(string_is_empty(game->path))
{
log_cb(RETRO_LOG_ERROR, LOGPRE "Content path is not set. Exiting!\n");
return false;
}
log_cb(RETRO_LOG_INFO, LOGPRE "Content path: %s.\n", game->path);
if(!path_is_valid(game->path))
{
log_cb(RETRO_LOG_ERROR, LOGPRE "Content path is not valid. Exiting!");
return false;
}
driver_lookup = strdup(path_basename(game->path));
path_remove_extension(driver_lookup);
log_cb(RETRO_LOG_INFO, LOGPRE "Content lookup name: %s.\n", driver_lookup);
for (driverIndex = 0; driverIndex < total_drivers; driverIndex++)
{
const struct GameDriver *needle = drivers[driverIndex];
if ((strcasecmp(driver_lookup, needle->description) == 0)
|| (strcasecmp(driver_lookup, needle->name) == 0) )
{
log_cb(RETRO_LOG_INFO, LOGPRE "Driver index counter: %d. Matched game driver: %s.\n", driverIndex, needle->name);
game_driver = needle;
options.romset_filename_noext = driver_lookup;
break;
}
if(driverIndex == total_drivers -2) // we could fix the total drives in drivers c but the it pointless its taken into account here
{
log_cb(RETRO_LOG_ERROR, LOGPRE "Driver index counter: %d. Game driver not found for %s!\n", driverIndex, needle->name);
return false;
}
}
if(!init_game(driverIndex))
return false;
set_content_flags();
options.libretro_content_path = strdup(game->path);
path_basedir(options.libretro_content_path);
/* Get system directory from frontend */
options.libretro_system_path = NULL;
environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY,&options.libretro_system_path);
if (options.libretro_system_path == NULL || options.libretro_system_path[0] == '\0')
{
log_cb(RETRO_LOG_INFO, LOGPRE "libretro system path not set by frontend, using content path\n");
options.libretro_system_path = options.libretro_content_path;
}
/* Get save directory from frontend */
options.libretro_save_path = NULL;
environ_cb(RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY,&options.libretro_save_path);
if (options.libretro_save_path == NULL || options.libretro_save_path[0] == '\0')
{
log_cb(RETRO_LOG_INFO, LOGPRE "libretro save path not set by frontent, using content path\n");
options.libretro_save_path = options.libretro_content_path;
}
log_cb(RETRO_LOG_INFO, LOGPRE "content path: %s\n", options.libretro_content_path);
log_cb(RETRO_LOG_INFO, LOGPRE " system path: %s\n", options.libretro_system_path);
log_cb(RETRO_LOG_INFO, LOGPRE " save path: %s\n", options.libretro_save_path);
init_core_options();
update_variables(true);
for(port_index = DISP_PLAYER6 - 1; port_index > (options.content_flags[CONTENT_CTRL_COUNT] - 1); port_index--)
{
retropad_subdevice_ports[port_index].types = &unsupported_controllers;
retropad_subdevice_ports[port_index].num_types = 4;
}
environ_cb(RETRO_ENVIRONMENT_SET_CONTROLLER_INFO, (void*)retropad_subdevice_ports);
if(!run_game(driverIndex))
return true;
return false;
}
static void set_content_flags(void)
{
int i = 0;
extern struct GameDriver driver_neogeo;
extern struct GameDriver driver_stvbios;
const struct InputPortTiny *input = game_driver->input_ports;
extern const char* ost_drivers[];
/************ DRIVERS WITH MULTIPLE BIOS OPTIONS ************/
if (game_driver->clone_of == &driver_neogeo
||(game_driver->clone_of && game_driver->clone_of->clone_of == &driver_neogeo))
{
options.content_flags[CONTENT_NEOGEO] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as a Neo Geo game.\n");
}
else if (game_driver->clone_of == &driver_stvbios
||(game_driver->clone_of && game_driver->clone_of->clone_of == &driver_stvbios))
{
options.content_flags[CONTENT_STV] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as a ST-V game.\n");
}
/************ DIE HARD: ARCADE ************/
if(strcasecmp(game_driver->name, "diehard") == 0)
{
options.content_flags[CONTENT_DIEHARD] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as \"Die Hard: Arcade\". BIOS will be set to \"us\".\n");
}
/************ DRIVERS WITH ALTERNATE SOUNDTRACKS ************/
while(ost_drivers[i])
{
if(strcmp(ost_drivers[i], game_driver->name) == 0)
{
options.content_flags[CONTENT_ALT_SOUND] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content has an alternative audio option controlled via core option.\n");
break;
}
i++;
}
/************ DRIVERS WITH VECTOR VIDEO DISPLAYS ************/
if(Machine->drv->video_attributes & VIDEO_TYPE_VECTOR)
{
options.content_flags[CONTENT_VECTOR] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as using a vector video display.\n");
}
/************ INPUT-BASED CONTENT FLAGS ************/
options.content_flags[CONTENT_JOYSTICK_DIRECTIONS] = 8; /* default behavior is 8-way joystick, even for 2-way games */
while ((input->type & ~IPF_MASK) != IPT_END)
{
/* skip analog extension fields */
if ((input->type & ~IPF_MASK) != IPT_EXTENSION)
{
switch (input->type & IPF_PLAYERMASK)
{
case IPF_PLAYER1:
if (options.content_flags[CONTENT_PLAYER_COUNT] < 1) options.content_flags[CONTENT_PLAYER_COUNT] = 1;
break;
case IPF_PLAYER2:
if (options.content_flags[CONTENT_PLAYER_COUNT] < 2) options.content_flags[CONTENT_PLAYER_COUNT] = 2;
break;
case IPF_PLAYER3:
if (options.content_flags[CONTENT_PLAYER_COUNT] < 3) options.content_flags[CONTENT_PLAYER_COUNT] = 3;
break;
case IPF_PLAYER4:
if (options.content_flags[CONTENT_PLAYER_COUNT] < 4) options.content_flags[CONTENT_PLAYER_COUNT] = 4;
break;
case IPF_PLAYER5:
if (options.content_flags[CONTENT_PLAYER_COUNT] < 5) options.content_flags[CONTENT_PLAYER_COUNT] = 5;
break;
case IPF_PLAYER6:
if (options.content_flags[CONTENT_PLAYER_COUNT] < 6) options.content_flags[CONTENT_PLAYER_COUNT] = 6;
break;
}
if (input->type & IPF_4WAY) /* original controls used a 4-way joystick */
{
options.content_flags[CONTENT_JOYSTICK_DIRECTIONS] = 4;
}
switch (input->type & ~IPF_MASK)
{
case IPT_JOYSTICKRIGHT_UP:
case IPT_JOYSTICKRIGHT_DOWN:
case IPT_JOYSTICKRIGHT_LEFT:
case IPT_JOYSTICKRIGHT_RIGHT:
case IPT_JOYSTICKLEFT_UP:
case IPT_JOYSTICKLEFT_DOWN:
case IPT_JOYSTICKLEFT_LEFT:
case IPT_JOYSTICKLEFT_RIGHT:
options.content_flags[CONTENT_DUAL_JOYSTICK] = true; /* if there are any "JOYSTICKLEFT" mappings we know there are two joysticks */
break;
case IPT_BUTTON1:
if (options.content_flags[CONTENT_BUTTON_COUNT] < 1) options.content_flags[CONTENT_BUTTON_COUNT] = 1;
break;
case IPT_BUTTON2:
if (options.content_flags[CONTENT_BUTTON_COUNT] < 2) options.content_flags[CONTENT_BUTTON_COUNT] = 2;
break;
case IPT_BUTTON3:
if (options.content_flags[CONTENT_BUTTON_COUNT] < 3) options.content_flags[CONTENT_BUTTON_COUNT] = 3;
break;
case IPT_BUTTON4:
if (options.content_flags[CONTENT_BUTTON_COUNT] < 4) options.content_flags[CONTENT_BUTTON_COUNT] = 4;
break;
case IPT_BUTTON5:
if (options.content_flags[CONTENT_BUTTON_COUNT] < 5) options.content_flags[CONTENT_BUTTON_COUNT] = 5;
break;
case IPT_BUTTON6:
if (options.content_flags[CONTENT_BUTTON_COUNT] <6 ) options.content_flags[CONTENT_BUTTON_COUNT] = 6;
break;
case IPT_BUTTON7:
if (options.content_flags[CONTENT_BUTTON_COUNT] < 7) options.content_flags[CONTENT_BUTTON_COUNT] = 7;
break;
case IPT_BUTTON8:
if (options.content_flags[CONTENT_BUTTON_COUNT] < 8) options.content_flags[CONTENT_BUTTON_COUNT] = 8;
break;
case IPT_BUTTON9:
if (options.content_flags[CONTENT_BUTTON_COUNT] < 9) options.content_flags[CONTENT_BUTTON_COUNT] = 9;
break;
case IPT_BUTTON10:
if (options.content_flags[CONTENT_BUTTON_COUNT] < 10) options.content_flags[CONTENT_BUTTON_COUNT] = 10;
break;
case IPT_PADDLE:
options.content_flags[CONTENT_PADDLE] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as using paddle controls.\n");
break;
case IPT_DIAL:
options.content_flags[CONTENT_DIAL] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as using dial controls.\n");
break;
case IPT_TRACKBALL_X:
case IPT_TRACKBALL_Y:
options.content_flags[CONTENT_TRACKBALL] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as using trackball controls.\n");
break;
case IPT_AD_STICK_X:
case IPT_AD_STICK_Y:
options.content_flags[CONTENT_AD_STICK] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as using Analog/Digital stick controls.\n");
break;
case IPT_LIGHTGUN_X:
case IPT_LIGHTGUN_Y:
options.content_flags[CONTENT_LIGHTGUN] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as using Analog/Digital stick controls.\n");
break;
case IPT_SERVICE :
options.content_flags[CONTENT_HAS_SERVICE] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as having a service button.\n");
break;
case IPT_TILT :
options.content_flags[CONTENT_HAS_TILT] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as having a tilt feature.\n");
break;
}
}
++input;
}
if(options.content_flags[CONTENT_DUAL_JOYSTICK] == true)
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as using \"dual joystick\" controls.\n");
if (options.content_flags[CONTENT_JOYSTICK_DIRECTIONS] == 4)
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as using 4-way joystick controls.\n");
else
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified as using 8-way joystick controls.\n");
/************ DRIVERS FLAGGED IN CONTROLS.C WITH 45-DEGREE JOYSTICK ROTATION ************/
if(game_driver->ctrl_dat->rotate_joy_45)
{
options.content_flags[CONTENT_ROTATE_JOY_45] = true;
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified by controls.c as joysticks rotated 45-degrees with respect to the cabinet.\n");
}
else
log_cb(RETRO_LOG_INFO, LOGPRE "Content identified by controls.c as having joysticks on axis with respect to the cabinet.\n");
/************ DRIVERS FLAGGED IN CONTROLS.C WITH ALTERNATING CONTROLS ************/
if(game_driver->ctrl_dat->alternating_controls)
{
options.content_flags[CONTENT_ALTERNATING_CTRLS] = true;
/* there may or may not be some need to have a ctrl_count different than player_count, perhaps because of some
alternating controls layout. this is a place to check some condition and make the two numbers different
if that should ever prove useful. */
if(true)
options.content_flags[CONTENT_CTRL_COUNT] = options.content_flags[CONTENT_PLAYER_COUNT];