forked from skmp/reicast-emulator
/
libretro.cpp
2891 lines (2544 loc) · 82.9 KB
/
libretro.cpp
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#include <cstdio>
#include <cstdarg>
#include <math.h>
#include "types.h"
#ifndef _WIN32
#include <sys/time.h>
#endif
#include <sys/stat.h>
#include <retro_stat.h>
#include <libretro.h>
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGLES)
#include <glsm/glsm.h>
#endif
#include "../rend/rend.h"
#include "../hw/sh4/sh4_mem.h"
#include "../hw/sh4/sh4_sched.h"
#include "keyboard_map.h"
#include "hw/maple/maple_if.h"
#include "../hw/pvr/spg.h"
#include "../hw/naomi/naomi_cart.h"
#include "../imgread/common.h"
#include "../hw/aica/dsp.h"
#if defined(_XBOX) || defined(_WIN32)
char slash = '\\';
#else
char slash = '/';
#endif
#define RETRO_ENVIRONMENT_RETROARCH_START_BLOCK 0x800000
#define RETRO_ENVIRONMENT_SET_SAVE_STATE_IN_BACKGROUND (2 | RETRO_ENVIRONMENT_RETROARCH_START_BLOCK)
/* bool * --
* Boolean value that tells the front end to save states in the
* background or not.
*/
#define RETRO_ENVIRONMENT_GET_CLEAR_ALL_THREAD_WAITS_CB (3 | RETRO_ENVIRONMENT_RETROARCH_START_BLOCK)
/* retro_environment_t * --
* Provides the callback to the frontend method which will cancel
* all currently waiting threads. Used when coordination is needed
* between the core and the frontend to gracefully stop all threads.
*/
u32 fskip;
extern int screen_width;
extern int screen_height;
char save_dir[PATH_MAX];
char eeprom_file[PATH_MAX];
char nvmem_file[PATH_MAX];
char nvmem_file2[PATH_MAX]; // AtomisWave
bool boot_to_bios;
static bool devices_need_refresh = false;
static int device_type[4] = {-1,-1,-1,-1};
static int astick_deadzone = 0;
static int trigger_deadzone = 0;
static bool digital_triggers = false;
static bool allow_service_buttons = false;
u32 kcode[4] = {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF};
u8 rt[4] = {0, 0, 0, 0};
u8 lt[4] = {0, 0, 0, 0};
u32 vks[4];
s8 joyx[4], joyy[4];
s8 joyrx[4], joyry[4];
extern f32 mo_x_abs[4];
extern f32 mo_y_abs[4];
extern u32 mo_buttons[4];
extern f32 mo_x_delta[4];
extern f32 mo_y_delta[4];
extern f32 mo_wheel_delta[4];
bool enable_purupuru = true;
static u32 vib_stop_time[4];
static double vib_strength[4];
static double vib_delta[4];
static bool first_run = true;
enum DreamcastController
{
DC_BTN_C = 1,
DC_BTN_B = 1<<1,
DC_BTN_A = 1<<2,
DC_BTN_START = 1<<3,
DC_DPAD_UP = 1<<4,
DC_DPAD_DOWN = 1<<5,
DC_DPAD_LEFT = 1<<6,
DC_DPAD_RIGHT = 1<<7,
DC_BTN_Z = 1<<8,
DC_BTN_Y = 1<<9,
DC_BTN_X = 1<<10,
DC_BTN_D = 1<<11,
DC_DPAD2_UP = 1<<12,
DC_DPAD2_DOWN = 1<<13,
DC_DPAD2_LEFT = 1<<14,
DC_DPAD2_RIGHT = 1<<15,
DC_AXIS_LT = 0X10000,
DC_AXIS_RT = 0X10001,
DC_AXIS_X = 0X20000,
DC_AXIS_Y = 0X20001,
};
struct retro_perf_callback perf_cb;
retro_get_cpu_features_t perf_get_cpu_features_cb = NULL;
// Callbacks
retro_log_printf_t log_cb = NULL;
retro_video_refresh_t video_cb = NULL;
retro_input_poll_t poll_cb = NULL;
retro_input_state_t input_cb = NULL;
retro_audio_sample_batch_t audio_batch_cb = NULL;
retro_environment_t environ_cb = NULL;
retro_environment_t frontend_clear_thread_waits_cb = NULL;
static retro_rumble_interface rumble;
int dc_init(int argc,wchar* argv[]);
void dc_reset();
void dc_run();
void dc_term(void);
void dc_stop();
void dc_start();
void FlushCache(); // Arm dynarec (arm and x86 only)
bool dc_is_running();
extern Renderer* renderer;
bool rend_single_frame();
void rend_cancel_emu_wait();
bool acquire_mainloop_lock();
static void refresh_devices(bool descriptors_only);
static void init_disk_control_interface(const char *initial_image_path);
static bool read_m3u(const char *file);
static int co_argc;
static wchar** co_argv;
char *game_data;
char g_base_name[128];
char game_dir[1024];
char game_dir_no_slash[1024];
char g_roms_dir[PATH_MAX];
static bool emu_in_thread = false;
static bool performed_serialization = false;
#if !defined(TARGET_NO_THREADS)
static void *emu_thread_func(void *);
static cThread emu_thread(&emu_thread_func, 0);
static cMutex mtx_serialization ;
static cMutex mtx_mainloop ;
static bool gl_ctx_resetting = false;
bool reset_requested;
// Disk swapping
static struct retro_disk_control_callback retro_disk_control_cb;
static unsigned disk_index = 0;
static std::vector<std::string> disk_paths;
static bool disc_tray_open = false;
static void *emu_thread_func(void *)
{
emu_in_thread = true ;
while ( true )
{
performed_serialization = false ;
mtx_mainloop.Lock() ;
rend_cancel_emu_wait() ;
dc_run();
mtx_mainloop.Unlock() ;
mtx_serialization.Lock() ;
mtx_serialization.Unlock() ;
if (!performed_serialization && !reset_requested)
break ;
if (reset_requested)
{
dc_reset();
reset_requested = false;
}
}
rend_cancel_emu_wait() ;
dc_term();
emu_in_thread = false ;
return NULL;
}
#endif
void co_dc_yield(void)
{
#if !defined(TARGET_NO_THREADS)
if (!settings.rend.ThreadedRendering)
#endif
{
if (settings.UpdateMode || settings.UpdateModeForced)
return;
dc_stop();
}
}
void retro_set_video_refresh(retro_video_refresh_t cb)
{
video_cb = cb;
}
void retro_set_audio_sample(retro_audio_sample_t cb)
{
// Nothing to do here
}
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)
{
poll_cb = cb;
}
void retro_set_input_state(retro_input_state_t cb)
{
input_cb = cb;
}
static void input_set_deadzone_stick( int percent )
{
if ( percent >= 0 && percent <= 100 )
astick_deadzone = (int)( percent * 0.01f * 0x8000);
}
static void input_set_deadzone_trigger( int percent )
{
if ( percent >= 0 && percent <= 100 )
trigger_deadzone = (int)( percent * 0.01f * 0x8000);
}
#define COLORS_STRING "BLACK 02|" \
"BLUE 03|" \
"LIGHT_BLUE 04|" \
"GREEN 05|" \
"CYAN 06|" \
"CYAN_BLUE 07|" \
"LIGHT_GREEN 08|" \
"CYAN_GREEN 09|" \
"LIGHT_CYAN 10|" \
"RED 11|" \
"PURPLE 12|" \
"LIGHT_PURPLE 13|" \
"YELLOW 14|" \
"GRAY 15|" \
"LIGHT_PURPLE_2 16|" \
"LIGHT_GREEN_2 17|" \
"LIGHT_GREEN_3 18|" \
"LIGHT_CYAN_2 19|" \
"LIGHT_RED_2 20|" \
"MAGENTA 21|" \
"LIGHT_PURPLE_2 22|" \
"LIGHT_ORANGE 23|" \
"ORANGE 24|" \
"LIGHT_PURPLE_3 25|" \
"LIGHT_YELLOW 26|" \
"LIGHT_YELLOW_2 27|" \
"WHITE 28" \
#define VMU_SCREEN_PARAMS(num) { \
"reicast_vmu" #num "_screen_display", \
"VMU Screen " #num " Display; disabled|enabled" \
}, \
{ \
"reicast_vmu" #num "_screen_position", \
"VMU Screen " #num " Position; Upper Left|Upper Right|Lower Left|Lower Right" \
}, \
{ \
"reicast_vmu" #num "_screen_size_mult", \
"VMU Screen " #num " Size; 1x|2x|3x|4x|5x" \
}, \
{ \
"reicast_vmu" #num "_pixel_on_color", \
"VMU Screen " #num " Pixel On Color; " "DEFAULT_ON 00|DEFAULT_OFF 01|" \
COLORS_STRING \
}, \
{ \
"reicast_vmu" #num "_pixel_off_color", \
"VMU Screen " #num " Pixel Off Color; " "DEFAULT_OFF 01|DEFAULT_ON 00|" \
COLORS_STRING \
}, \
{ \
"reicast_vmu" #num "_screen_opacity", \
"VMU Screen " #num " Opacity; 100%|90%|80%|70%|60%|50%|40%|30%|20%|10%" \
}, \
void retro_set_environment(retro_environment_t cb)
{
environ_cb = cb;
struct retro_variable variables[] = {
#if ((FEAT_SHREC == DYNAREC_JIT && HOST_CPU == CPU_X86) || (HOST_CPU == CPU_ARM) || (HOST_CPU == CPU_ARM64) || (HOST_CPU == CPU_X64) || TARGET_NO_JIT)
{
"reicast_cpu_mode",
"CPU Mode (restart); "
#if (FEAT_SHREC == DYNAREC_JIT && HOST_CPU == CPU_X86) || (HOST_CPU == CPU_ARM) || (HOST_CPU == CPU_ARM64) || (HOST_CPU == CPU_X64)
"dynamic_recompiler"
#endif
#ifdef TARGET_NO_JIT
"|"
"generic_recompiler"
#endif
,
},
#endif
{
"reicast_boot_to_bios",
"Boot to BIOS (restart); disabled|enabled",
},
{
"reicast_system",
"System type (restart); auto|dreamcast|naomi|atomiswave",
},
#ifdef HAVE_OIT
{
"reicast_oit_abuffer_size",
"Accumulation pixel buffer size (restart); 512MB|1GB|2GB",
},
#endif
{
"reicast_internal_resolution",
#ifdef LOW_RES
"Internal resolution (restart); 320x240|640x480|1280x960|1440x1080|1920x1440|2560x1920|2880x2160|3200x2400|3840x2880|4480x3360|5120x3840|5760x4320|6400x4800|7040x5280|7680x5760|8320x6240|8960x6720|9600x7200|10240x7680|10880x8160|11520x8640|12160x9120|12800x9600",
#else
"Internal resolution (restart); 640x480|320x240|1280x960|1440x1080|1920x1440|2560x1920|2880x2160|3200x2400|3840x2880|4480x3360|5120x3840|5760x4320|6400x4800|7040x5280|7680x5760|8320x6240|8960x6720|9600x7200|10240x7680|10880x8160|11520x8640|12160x9120|12800x9600",
#endif
},
{
"reicast_screen_rotation",
"Screen orientation; horizontal|vertical",
},
{
"reicast_alpha_sorting",
#ifdef LOW_END
"Alpha sorting; per-strip (fast, least accurate)|per-triangle (normal)",
#else
#ifdef HAVE_OIT
"Alpha sorting; per-triangle (normal)|per-strip (fast, least accurate)|per-pixel (accurate)",
#else
"Alpha sorting; per-triangle (normal)|per-strip (fast, least accurate)",
#endif
#endif
},
{
"reicast_gdrom_fast_loading",
#ifdef LOW_END
"GDROM Fast Loading (inaccurate); enabled|disabled",
#else
"GDROM Fast Loading (inaccurate); disabled|enabled",
#endif
},
{
"reicast_mipmapping",
"Mipmapping; enabled|disabled",
},
{
"reicast_volume_modifier_enable",
"Volume modifier; enabled|disabled",
},
{
"reicast_widescreen_hack",
"Widescreen hack (restart); disabled|enabled",
},
{
"reicast_audio_buffer_size",
"Audio buffer size; 1024|2048",
},
{
"reicast_cable_type",
#ifdef LOW_END
"Cable type; VGA (RGB)|TV (RGB)|TV (Composite)",
#else
"Cable type; TV (RGB)|TV (Composite)|VGA (RGB)",
#endif
},
{
"reicast_broadcast",
"Broadcast; Default|PAL_M|PAL_N|NTSC|PAL",
},
{
"reicast_framerate",
"Framerate; fullspeed|normal",
},
{
"reicast_region",
"Region; Default|Japan|USA|Europe",
},
{
"reicast_language",
"Language; Default|Japanese|English|German|French|Spanish|Italian",
},
{
"reicast_div_matching",
#ifdef LOW_END
"DIV matching (performance, less accurate); enabled|disabled|auto",
#else
"DIV matching (performance, less accurate); disabled|enabled|auto",
#endif
},
{
"reicast_analog_stick_deadzone",
"Analog Stick Deadzone; 15%|20%|25%|30%|0%|5%|10%"
},
{
"reicast_trigger_deadzone",
"Trigger Deadzone; 0%|5%|10%|15%|20%|25%|30%"
},
{
"reicast_digital_triggers",
"Digital Triggers; disabled|enabled",
},
{
"reicast_enable_dsp",
#ifdef LOW_END
"Enable DSP; disabled|enabled",
#else
"Enable DSP; enabled|disabled",
#endif
},
#ifdef HAVE_TEXUPSCALE
{
"reicast_texupscale",
"Texture upscaling (xBRZ); off|2x|4x|6x",
},
{
"reicast_texupscale_max_filtered_texture_size",
"Texture upscaling max filtered size; 256|512|1024",
},
#endif
{
"reicast_enable_rtt",
"Enable RTT (Render To Texture); enabled|disabled",
},
{
"reicast_enable_rttb",
"Enable RTT (Render To Texture) Buffer; disabled|enabled",
},
{
"reicast_render_to_texture_upscaling",
"Render To Texture Upscaling; 1x|2x|3x|4x|8x",
},
#if !defined(TARGET_NO_THREADS)
{
"reicast_threaded_rendering",
"Threaded rendering (restart); enabled|disabled",
},
{
"reicast_synchronous_rendering",
"Synchronous rendering; disabled|enabled",
},
#endif
{
"reicast_frame_skipping",
"Frame skipping; disabled|1|2|3|4|5|6",
},
{
"reicast_enable_purupuru",
"Purupuru Pack; enabled|disabled"
},
{
"reicast_allow_service_buttons",
"Allow Naomi service buttons; disabled|enabled"
},
{
"reicast_custom_textures",
"Load custom textures; disabled|enabled"
},
{
"reicast_dump_textures",
"Dump textures; disabled|enabled"
},
VMU_SCREEN_PARAMS(1)
VMU_SCREEN_PARAMS(2)
VMU_SCREEN_PARAMS(3)
VMU_SCREEN_PARAMS(4)
{ NULL, NULL },
};
cb(RETRO_ENVIRONMENT_SET_VARIABLES, variables);
static const struct retro_controller_description ports_default[] =
{
{ "Gamepad", RETRO_DEVICE_JOYPAD },
{ "Keyboard", RETRO_DEVICE_KEYBOARD },
{ "Mouse", RETRO_DEVICE_MOUSE },
{ "Light Gun", RETRO_DEVICE_LIGHTGUN },
{ "Disconnected", RETRO_DEVICE_NONE },
{ 0 },
};
static const struct retro_controller_info ports[] = {
{ ports_default, 4 },
{ ports_default, 4 },
{ ports_default, 4 },
{ ports_default, 4 },
{ 0 },
};
environ_cb(RETRO_ENVIRONMENT_SET_CONTROLLER_INFO, (void*)ports);
}
void retro_keyboard_event(bool down, unsigned keycode, uint32_t character, uint16_t key_modifiers);
// Now comes the interesting stuff
void retro_init(void)
{
screen_width = 640;
screen_height = 480;
// Logging
struct retro_log_callback log;
if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log))
log_cb = log.log;
else
log_cb = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_PERF_INTERFACE, &perf_cb))
perf_get_cpu_features_cb = perf_cb.get_cpu_features;
else
perf_get_cpu_features_cb = NULL;
// Set color mode
unsigned color_mode = RETRO_PIXEL_FORMAT_XRGB8888;
environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &color_mode);
environ_cb(RETRO_ENVIRONMENT_GET_CLEAR_ALL_THREAD_WAITS_CB, &frontend_clear_thread_waits_cb);
init_kb_map();
struct retro_keyboard_callback kb_callback = { &retro_keyboard_event };
environ_cb(RETRO_ENVIRONMENT_SET_KEYBOARD_CALLBACK, &kb_callback);
}
void retro_deinit(void)
{
first_run = true;
//When auto-save states are enabled this is needed to prevent the core from shutting down before
//any save state actions are still running - which results in partial saves
mtx_serialization.Lock() ;
mtx_serialization.Unlock() ;
}
static bool is_dupe = false;
extern int GDROM_TICK;
static bool rotate_screen = false;
static void update_variables(bool first_startup)
{
struct retro_variable var;
int i ;
char key[256] ;
var.key = "reicast_widescreen_hack";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp(var.value, "enabled"))
settings.rend.WideScreen = 1;
else
settings.rend.WideScreen = 0;
}
else
settings.rend.WideScreen = 0;
var.key = "reicast_screen_rotation";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value && !strcmp("vertical", var.value))
{
rotate_screen = true;
settings.rend.WideScreen = 0;
}
var.key = "reicast_internal_resolution";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
char *pch;
char str[100];
snprintf(str, sizeof(str), "%s", var.value);
pch = strtok(str, "x");
if (pch)
screen_width = strtoul(pch, NULL, 0);
pch = strtok(NULL, "x");
if (pch)
screen_height = strtoul(pch, NULL, 0);
if (settings.rend.WideScreen)
{
if (!strcmp(var.value, "640x480"))
{
screen_width = 854;
}
else if (!strcmp(var.value, "1280x960"))
{
screen_width = 1536;
}
else if (!strcmp(var.value, "1920x1440"))
screen_height = 1200;
else if (!strcmp(var.value, "2560x1920"))
screen_width = 3200;
}
fprintf(stderr, "[reicast]: Got size: %u x %u.\n", screen_width, screen_height);
}
var.key = "reicast_cpu_mode";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp(var.value, "dynamic_recompiler"))
settings.dynarec.Type = 0;
else if (!strcmp(var.value, "generic_recompiler"))
settings.dynarec.Type = 1;
}
var.key = "reicast_boot_to_bios";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp(var.value, "enabled"))
boot_to_bios = true;
else if (!strcmp(var.value, "disabled"))
boot_to_bios = false;
}
else
boot_to_bios = false;
var.key = "reicast_gdrom_fast_loading";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp(var.value, "enabled"))
GDROM_TICK = 0001000;
else if (!strcmp(var.value, "disabled"))
GDROM_TICK = 1500000;
}
else
GDROM_TICK = 1500000;
var.key = "reicast_alpha_sorting";
int previous_renderer = settings.pvr.rend;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp(var.value, "per-strip (fast, least accurate)"))
{
settings.pvr.rend = 0;
settings.pvr.Emulation.AlphaSortMode = 1;
}
else if (!strcmp(var.value, "per-triangle (normal)"))
{
settings.pvr.rend = 0;
settings.pvr.Emulation.AlphaSortMode = 0;
}
else if (!strcmp(var.value, "per-pixel (accurate)"))
{
settings.pvr.rend = 3;
settings.pvr.Emulation.AlphaSortMode = 0; // Not used
}
}
else
{
settings.pvr.rend = 0;
settings.pvr.Emulation.AlphaSortMode = 0;
}
if (!first_startup && previous_renderer != settings.pvr.rend)
renderer_changed = true;
var.key = "reicast_mipmapping";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp(var.value, "enabled"))
settings.rend.UseMipmaps = 1;
else if (!strcmp(var.value, "disabled"))
settings.rend.UseMipmaps = 0;
}
else
settings.rend.UseMipmaps = 1;
if (first_startup)
{
var.key = "reicast_system";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp(var.value, "auto"))
settings.System = DC_PLATFORM_DREAMCAST;
else if (!strcmp(var.value, "dreamcast"))
settings.System = DC_PLATFORM_DREAMCAST;
else if (!strcmp(var.value, "naomi"))
settings.System = DC_PLATFORM_NAOMI;
else if (!strcmp(var.value, "atomiswave"))
settings.System = DC_PLATFORM_ATOMISWAVE;
}
else
settings.System = DC_PLATFORM_DREAMCAST;
#ifdef HAVE_OIT
extern GLuint pixel_buffer_size;
var.key = "reicast_oit_abuffer_size";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp(var.value, "512MB"))
pixel_buffer_size = 0x20000000u;
else if (!strcmp(var.value, "1GB"))
pixel_buffer_size = 0x40000000u;
else if (!strcmp(var.value, "2GB"))
pixel_buffer_size = 0x80000000u;
else
pixel_buffer_size = 0x20000000u;
}
else
pixel_buffer_size = 0x20000000u;
#endif
}
var.key = "reicast_volume_modifier_enable";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp(var.value, "disabled"))
settings.pvr.Emulation.ModVol = false;
else if (!strcmp(var.value, "enabled"))
settings.pvr.Emulation.ModVol = true;
}
else
settings.pvr.Emulation.ModVol = true;
var.key = "reicast_audio_buffer_size";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
settings.aica.BufferSize = atoi(var.value);
}
else
settings.aica.BufferSize = 1024;
var.key = "reicast_cable_type";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("VGA (RGB)", var.value))
settings.dreamcast.cable = 0;
else if (!strcmp("TV (RGB)", var.value))
settings.dreamcast.cable = 2;
else if (!strcmp("TV (Composite)", var.value))
settings.dreamcast.cable = 3;
}
var.key = "reicast_broadcast";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("NTSC", var.value))
settings.dreamcast.broadcast = 0;
else if (!strcmp("PAL", var.value))
settings.dreamcast.broadcast = 1;
else if (!strcmp("PAL_M", var.value))
settings.dreamcast.broadcast = 2;
else if (!strcmp("PAL_N", var.value))
settings.dreamcast.broadcast = 3;
else if (!strcmp("Default", var.value))
settings.dreamcast.broadcast = 4;
}
else
settings.dreamcast.broadcast = 4;
var.key = "reicast_framerate";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("normal", var.value))
settings.UpdateMode = 0;
else if (!strcmp("fullspeed", var.value))
settings.UpdateMode = 1;
}
else
settings.UpdateMode = 0;
var.key = "reicast_region";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("Japan", var.value))
settings.dreamcast.region = 0;
else if (!strcmp("USA", var.value))
settings.dreamcast.region = 1;
else if (!strcmp("Europe", var.value))
settings.dreamcast.region = 2;
else if (!strcmp("Default", var.value))
settings.dreamcast.region = 3;
}
else
settings.dreamcast.region = 3;
var.key = "reicast_language";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("Japanese", var.value))
settings.dreamcast.language = 0;
else if (!strcmp("English", var.value))
settings.dreamcast.language = 1;
else if (!strcmp("German", var.value))
settings.dreamcast.language = 2;
else if (!strcmp("French", var.value))
settings.dreamcast.language = 3;
else if (!strcmp("Spanish", var.value))
settings.dreamcast.language = 4;
else if (!strcmp("Italian", var.value))
settings.dreamcast.language = 5;
else if (!strcmp("Default", var.value))
settings.dreamcast.language = 6;
}
else
settings.dreamcast.language = 6;
var.key = "reicast_div_matching";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("auto", var.value))
{
settings.dynarec.DisableDivMatching = 0;
settings.dynarec.AutoDivMatching = true;
}
else if (!strcmp("enabled", var.value))
{
settings.dynarec.DisableDivMatching = 0;
settings.dynarec.AutoDivMatching = false;
}
else if (!strcmp("disabled", var.value))
{
settings.dynarec.DisableDivMatching = 1;
settings.dynarec.AutoDivMatching = false;
}
}
#ifdef HAVE_TEXUPSCALE
var.key = "reicast_texupscale";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("off", var.value))
settings.rend.TextureUpscale = 1;
else if (!strcmp("2x", var.value))
settings.rend.TextureUpscale = 2;
else if (!strcmp("4x", var.value))
settings.rend.TextureUpscale = 4;
else if (!strcmp("6x", var.value))
settings.rend.TextureUpscale = 6;
}
else if (first_startup)
settings.rend.TextureUpscale = 1;
var.key = "reicast_texupscale_max_filtered_texture_size";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("256", var.value))
settings.rend.MaxFilteredTextureSize = 256;
else if (!strcmp("512", var.value))
settings.rend.MaxFilteredTextureSize = 512;
else if (!strcmp("1024", var.value))
settings.rend.MaxFilteredTextureSize = 1024;
}
else
settings.rend.MaxFilteredTextureSize = 256;
#endif
var.key = "reicast_enable_rtt";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("enabled", var.value))
settings.rend.RenderToTexture = true;
else
settings.rend.RenderToTexture = false;
}
else
settings.rend.RenderToTexture = true;
var.key = "reicast_enable_rttb";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("enabled", var.value))
settings.rend.RenderToTextureBuffer = true;
else
settings.rend.RenderToTextureBuffer = false;
}
else
settings.rend.RenderToTextureBuffer = false;
var.key = "reicast_render_to_texture_upscaling";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
char *pch;
char str[100];
sprintf(str, "%s", var.value);
pch = strtok(str, "x");
if (pch)
settings.rend.RenderToTextureUpscale = strtoul(pch, NULL, 0);
}
else if (first_startup)
settings.rend.RenderToTextureUpscale = 1;
#if !defined(TARGET_NO_THREADS)
if (first_startup)
{
bool save_state_in_background = true ;
var.key = "reicast_threaded_rendering";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("enabled", var.value))
settings.rend.ThreadedRendering = true;
else
settings.rend.ThreadedRendering = false;
}
else
settings.rend.ThreadedRendering = false;
if ( settings.rend.ThreadedRendering )
environ_cb(RETRO_ENVIRONMENT_SET_SAVE_STATE_IN_BACKGROUND, &save_state_in_background);
}
#endif
var.key = "reicast_synchronous_rendering";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("enabled", var.value))
settings.pvr.SynchronousRendering = 1;
else
settings.pvr.SynchronousRendering = 0;
}
else
settings.pvr.SynchronousRendering = 0;
var.key = "reicast_frame_skipping";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("disabled", var.value))
settings.pvr.ta_skip = 0;
else {
settings.pvr.ta_skip = max(0, min(6, var.value[0] - '0'));
}
}
else
settings.pvr.ta_skip = 0;
var.key = "reicast_enable_purupuru";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (enable_purupuru != (strcmp("enabled", var.value) == 0) && settings.System == DC_PLATFORM_DREAMCAST)
{
enable_purupuru = (strcmp("enabled", var.value) == 0);
maple_ReconnectDevices();
}
}
var.key = "reicast_analog_stick_deadzone";
var.value = NULL;
if ( environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value )
input_set_deadzone_stick( atoi( var.value ) );
var.key = "reicast_trigger_deadzone";
var.value = NULL;
if ( environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value )
input_set_deadzone_trigger( atoi( var.value ) );
var.key = "reicast_enable_dsp";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (!strcmp("enabled", var.value))
{