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flycast/core/emulator.cpp

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/*
Copyright 2021 flyinghead
This file is part of Flycast.
Flycast is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
Flycast is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Flycast. If not, see <https://www.gnu.org/licenses/>.
*/
#include "emulator.h"
#include "types.h"
#include "stdclass.h"
#include "cfg/option.h"
#include "hw/aica/aica_if.h"
#include "imgread/common.h"
#include "hw/naomi/naomi_cart.h"
#include "reios/reios.h"
#include "hw/sh4/modules/mmu.h"
#include "hw/sh4/sh4_if.h"
#include "hw/sh4/sh4_mem.h"
#include "hw/sh4/sh4_sched.h"
#include "hw/holly/sb_mem.h"
#include "cheats.h"
#include "oslib/audiostream.h"
#include "debug/gdb_server.h"
#include "hw/pvr/Renderer_if.h"
#include "hw/arm7/arm7_rec.h"
#include "network/ggpo.h"
#include "hw/mem/mem_watch.h"
#include "network/net_handshake.h"
#include "rend/gui.h"
#include "network/naomi_network.h"
#include "serialize.h"
#include "hw/pvr/pvr.h"
#include "profiler/fc_profiler.h"
#include <chrono>
settings_t settings;
static void loadSpecialSettings()
{
std::string& prod_id = settings.content.gameId;
NOTICE_LOG(BOOT, "Game ID is [%s]", prod_id.c_str());
if (settings.platform.isConsole())
{
if (ip_meta.isWindowsCE() || config::ForceWindowsCE
|| prod_id == "T26702N") // PBA Tour Bowling 2001
{
INFO_LOG(BOOT, "Enabling Full MMU and Extra depth scaling for Windows CE game");
config::ExtraDepthScale.override(0.1f); // taxi 2 needs 0.01 for FMV (amd, per-tri)
config::FullMMU.override(true);
if (!config::ForceWindowsCE)
config::ForceWindowsCE.override(true);
}
// Tony Hawk's Pro Skater 2
if (prod_id == "T13008D 05" || prod_id == "T13006N"
// Tony Hawk's Pro Skater 1
|| prod_id == "T40205N"
// Tony Hawk's Skateboarding
|| prod_id == "T40204D 50"
// Skies of Arcadia
|| prod_id == "MK-51052"
// Eternal Arcadia (JP)
|| prod_id == "HDR-0076"
// Flag to Flag (US)
|| prod_id == "MK-51007"
// Super Speed Racing (JP)
|| prod_id == "HDR-0013"
// Yu Suzuki Game Works Vol. 1
|| prod_id == "6108099"
// L.O.L
|| prod_id == "T2106M"
// Miss Moonlight
|| prod_id == "T18702M"
// Tom Clancy's Rainbow Six (US)
|| prod_id == "T40401N"
// Tom Clancy's Rainbow Six incl. Eagle Watch Missions (EU)
|| prod_id == "T-45001D05"
// Jet Grind Radio (US)
|| prod_id == "MK-51058"
// JSR (JP)
|| prod_id == "HDR-0078"
// JSR (EU)
|| prod_id == "MK-5105850"
// Worms World Party
|| prod_id == "T7016D 50")
{
INFO_LOG(BOOT, "Enabling RTT Copy to VRAM for game %s", prod_id.c_str());
config::RenderToTextureBuffer.override(true);
}
if (prod_id == "HDR-0176" || prod_id == "RDC-0057")
{
INFO_LOG(BOOT, "Enabling translucent depth multipass for game %s", prod_id.c_str());
// Cosmic Smash
config::TranslucentPolygonDepthMask.override(true);
}
// NHL 2K2
if (prod_id == "MK-51182")
{
INFO_LOG(BOOT, "Enabling Extra depth scaling for game %s", prod_id.c_str());
config::ExtraDepthScale.override(1000000.f); // Mali needs 1M, 10K is enough for others
}
// Re-Volt (US, EU)
else if (prod_id == "T-8109N" || prod_id == "T8107D 50")
{
INFO_LOG(BOOT, "Enabling Extra depth scaling for game %s", prod_id.c_str());
config::ExtraDepthScale.override(100.f);
}
// Samurai Shodown 6 dc port
else if (prod_id == "T0002M")
{
INFO_LOG(BOOT, "Enabling Extra depth scaling for game %s", prod_id.c_str());
config::ExtraDepthScale.override(1e26f);
}
// Test Drive V-Rally
else if (prod_id == "T15110N" || prod_id == "T15105D 50")
{
INFO_LOG(BOOT, "Enabling Extra depth scaling for game %s", prod_id.c_str());
config::ExtraDepthScale.override(0.1f);
}
// South Park Rally
else if (prod_id == "T-8116N" || prod_id == "T-8112D-50")
{
INFO_LOG(BOOT, "Enabling Extra depth scaling for game %s", prod_id.c_str());
config::ExtraDepthScale.override(1000.f);
}
std::string areas(ip_meta.area_symbols, sizeof(ip_meta.area_symbols));
bool region_usa = areas.find('U') != std::string::npos;
bool region_eu = areas.find('E') != std::string::npos;
bool region_japan = areas.find('J') != std::string::npos;
if (region_usa || region_eu || region_japan)
{
switch (config::Region)
{
case 0: // Japan
if (!region_japan)
{
NOTICE_LOG(BOOT, "Japan region not supported. Using %s instead", region_usa ? "USA" : "Europe");
config::Region.override(region_usa ? 1 : 2);
}
break;
case 1: // USA
if (!region_usa)
{
NOTICE_LOG(BOOT, "USA region not supported. Using %s instead", region_eu ? "Europe" : "Japan");
config::Region.override(region_eu ? 2 : 0);
}
break;
case 2: // Europe
if (!region_eu)
{
NOTICE_LOG(BOOT, "Europe region not supported. Using %s instead", region_usa ? "USA" : "Japan");
config::Region.override(region_usa ? 1 : 0);
}
break;
case 3: // Default
if (region_usa)
config::Region.override(1);
else if (region_eu)
config::Region.override(2);
else
config::Region.override(0);
break;
}
}
else
WARN_LOG(BOOT, "No region specified in IP.BIN");
if (config::Cable <= 1 && !ip_meta.supportsVGA())
{
NOTICE_LOG(BOOT, "Game doesn't support VGA. Using TV Composite instead");
config::Cable.override(3);
}
if (config::Cable == 2 &&
(prod_id == "T40602N" // Centipede
|| prod_id == "T9710N" // Gauntlet Legends (US)
|| prod_id == "MK-51152" // World Series Baseball 2K2
|| prod_id == "T-9701N" // Mortal Kombat Gold (US)
|| prod_id == "T1203N" // Street Fighter Alpha 3 (US)
|| prod_id == "T1203M" // Street Fighter Zero 3 (JP)
|| prod_id == "T13002N" // Vigilante 8 (US)
|| prod_id == "T13003N" // Toy Story 2 (US)
|| prod_id == "T1209N" // Gigawing (US)
|| prod_id == "T1208M" // Gigawing (JP)
|| prod_id == "T1235M" // Vampire Chronicle for Matching Service
|| prod_id == "T22901N"))// Roadsters (US)
{
NOTICE_LOG(BOOT, "Game doesn't support RGB. Using TV Composite instead");
config::Cable.override(3);
}
if (prod_id == "T7001D 50" // Jimmy White's 2 Cueball
|| prod_id == "T40505D 50" // Railroad Tycoon 2 (EU)
|| prod_id == "T18702M" // Miss Moonlight
|| prod_id == "T0019M" // KenJu Atomiswave DC Conversion
|| prod_id == "T0020M" // Force Five Atomiswave DC Conversion
|| prod_id == "HDR-0187" // Fushigi no Dungeon - Fuurai no Shiren Gaiden - Onna Kenshi Asuka Kenzan!
|| prod_id == "T15104D 50") // Slave Zero (PAL)
{
NOTICE_LOG(BOOT, "Forcing real BIOS");
config::UseReios.override(false);
}
if (prod_id == "T-9707N" // San Francisco Rush 2049 (US)
|| prod_id == "MK-51146" // Sega Smash Pack - Volume 1
|| prod_id == "T-9702D-50" // Hydro Thunder (PAL)
|| prod_id == "T41601N") // Elemental Gimmick Gear (US)
{
NOTICE_LOG(BOOT, "Forcing NTSC broadcasting");
config::Broadcast.override(0);
}
else if (prod_id == "T-9709D-50") // San Francisco Rush 2049 (EU)
{
NOTICE_LOG(BOOT, "Forcing PAL broadcasting");
config::Broadcast.override(1);
}
if (prod_id == "T1102M" // Densha de Go! 2
|| prod_id == "T00000A" // The Ring of the Nibelungen (demo, hack)
|| prod_id == "T15124N 00") // Worms Pinball (prototype)
{
NOTICE_LOG(BOOT, "Forcing Full Framebuffer Emulation");
config::EmulateFramebuffer.override(true);
}
}
else if (settings.platform.isArcade())
{
if (prod_id == "SAMURAI SPIRITS 6")
{
INFO_LOG(BOOT, "Enabling Extra depth scaling for game %s", prod_id.c_str());
config::ExtraDepthScale.override(1e26f);
}
if (prod_id == "COSMIC SMASH IN JAPAN")
{
INFO_LOG(BOOT, "Enabling translucent depth multipass for game %s", prod_id.c_str());
config::TranslucentPolygonDepthMask.override(true);
}
if (prod_id == "BEACH SPIKERS JAPAN")
{
INFO_LOG(BOOT, "Enabling RTT Copy to VRAM for game %s", prod_id.c_str());
config::RenderToTextureBuffer.override(true);
}
if (prod_id == "RADIRGY NOA")
{
INFO_LOG(BOOT, "Disabling Free Play for game %s", prod_id.c_str());
config::ForceFreePlay.override(false);
}
// Input configuration
settings.input.JammaSetup = JVS::Default;
if (prod_id == "DYNAMIC GOLF"
|| prod_id == "SHOOTOUT POOL"
|| prod_id == "SHOOTOUT POOL MEDAL"
|| prod_id == "CRACKIN'DJ ver JAPAN"
|| prod_id == "CRACKIN'DJ PART2 ver JAPAN"
|| prod_id == "KICK '4' CASH"
|| prod_id == "DRIVE") // Waiwai drive
{
INFO_LOG(BOOT, "Enabling JVS rotary encoders for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::RotaryEncoders;
}
else if (prod_id == "POWER STONE 2 JAPAN" // Naomi
|| prod_id == "GUILTY GEAR isuka") // AW
{
INFO_LOG(BOOT, "Enabling 4-player setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::FourPlayers;
}
else if (prod_id == "SEGA MARINE FISHING JAPAN"
|| prod_id == "BASS FISHING SIMULATOR VER.A") // AW
{
INFO_LOG(BOOT, "Enabling specific JVS setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::SegaMarineFishing;
}
else if (prod_id == "RINGOUT 4X4 JAPAN"
|| prod_id == "VIRTUA ATHLETE")
{
INFO_LOG(BOOT, "Enabling specific JVS setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::DualIOBoards4P;
}
else if (prod_id == "NINJA ASSAULT"
|| prod_id == "Sports Shooting USA" // AW
|| prod_id == "SEGA CLAY CHALLENGE" // AW
|| prod_id == "RANGER MISSION" // AW
|| prod_id == "EXTREME HUNTING" // AW
|| prod_id == "Fixed BOOT strapper")// Extreme hunting 2 (AW)
{
INFO_LOG(BOOT, "Enabling lightgun setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::LightGun;
}
else if (prod_id == "MAZAN")
{
INFO_LOG(BOOT, "Enabling specific JVS setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::Mazan;
}
else if (prod_id == " BIOHAZARD GUN SURVIVOR2")
{
INFO_LOG(BOOT, "Enabling specific JVS setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::GunSurvivor;
}
else if (prod_id == "WORLD KICKS")
{
INFO_LOG(BOOT, "Enabling specific JVS setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::WorldKicks;
}
else if (prod_id == "WORLD KICKS PCB")
{
INFO_LOG(BOOT, "Enabling specific JVS setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::WorldKicksPCB;
}
else if (prod_id == "THE TYPING OF THE DEAD"
|| prod_id == " LUPIN THE THIRD -THE TYPING-"
|| prod_id == "------La Keyboardxyu------")
{
INFO_LOG(BOOT, "Enabling keyboard for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::Keyboard;
}
else if (prod_id == "OUTTRIGGER JAPAN")
{
INFO_LOG(BOOT, "Enabling JVS rotary encoders for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::OutTrigger;
}
else if (prod_id == "THE MAZE OF THE KINGS"
|| prod_id == " CONFIDENTIAL MISSION ---------"
|| prod_id == "DEATH CRIMSON OX"
|| prod_id.substr(0, 5) == "hotd2" // House of the Dead 2
|| prod_id == "LUPIN THE THIRD -THE SHOOTING-")
{
INFO_LOG(BOOT, "Enabling lightgun as analog setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::LightGunAsAnalog;
}
else if (prod_id == "WAVE RUNNER GP")
{
INFO_LOG(BOOT, "Enabling specific JVS setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::WaveRunnerGP;
}
else if (prod_id == " 18WHEELER")
{
INFO_LOG(BOOT, "Enabling specific JVS setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::_18Wheeler;
}
else if (prod_id == "INU NO OSANPO") // Dog Walking
{
INFO_LOG(BOOT, "Enabling specific JVS setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::DogWalking;
}
else if (prod_id == " TOUCH DE UNOH -------------"
|| prod_id == "POKASUKA GHOST (JAPANESE)")
{
INFO_LOG(BOOT, "Enabling specific JVS setup for game %s", prod_id.c_str());
settings.input.JammaSetup = JVS::TouchDeUno;
}
}
}
void dc_reset(bool hard)
{
NetworkHandshake::term();
if (hard)
{
memwatch::unprotect();
memwatch::reset();
}
sh4_sched_reset(hard);
pvr::reset(hard);
libAICA_Reset(hard);
aicaarm::reset();
sh4_cpu.Reset(true);
mem_Reset(hard);
}
static void setPlatform(int platform)
{
if (VRAM_SIZE != 0)
_vmem_unprotect_vram(0, VRAM_SIZE);
elan::ERAM_SIZE = 0;
switch (platform)
{
case DC_PLATFORM_DREAMCAST:
settings.platform.ram_size = 16 * 1024 * 1024;
settings.platform.vram_size = 8 * 1024 * 1024;
settings.platform.aram_size = 2 * 1024 * 1024;
settings.platform.bios_size = 2 * 1024 * 1024;
settings.platform.flash_size = 128 * 1024;
break;
case DC_PLATFORM_NAOMI:
settings.platform.ram_size = 32 * 1024 * 1024;
settings.platform.vram_size = 16 * 1024 * 1024;
settings.platform.aram_size = 8 * 1024 * 1024;
settings.platform.bios_size = 2 * 1024 * 1024;
settings.platform.flash_size = 32 * 1024; // battery-backed ram
break;
case DC_PLATFORM_NAOMI2:
settings.platform.ram_size = 32 * 1024 * 1024;
settings.platform.vram_size = 16 * 1024 * 1024; // 2x16 MB VRAM, only 16 emulated
settings.platform.aram_size = 8 * 1024 * 1024;
settings.platform.bios_size = 2 * 1024 * 1024;
settings.platform.flash_size = 32 * 1024; // battery-backed ram
elan::ERAM_SIZE = 32 * 1024 * 1024;
break;
case DC_PLATFORM_ATOMISWAVE:
settings.platform.ram_size = 16 * 1024 * 1024;
settings.platform.vram_size = 8 * 1024 * 1024;
settings.platform.aram_size = 2 * 1024 * 1024;
settings.platform.bios_size = 128 * 1024;
settings.platform.flash_size = 128 * 1024; // sram
break;
default:
die("Unsupported platform");
break;
}
settings.platform.system = platform;
settings.platform.ram_mask = settings.platform.ram_size - 1;
settings.platform.vram_mask = settings.platform.vram_size - 1;
settings.platform.aram_mask = settings.platform.aram_size - 1;
_vmem_init_mappings();
}
void Emulator::init()
{
if (state != Uninitialized)
{
verify(state == Init);
return;
}
// Default platform
setPlatform(DC_PLATFORM_DREAMCAST);
pvr::init();
libAICA_Init();
aicaarm::init();
mem_Init();
reios_init();
// the recompiler may start generating code at this point and needs a fully configured machine
#if FEAT_SHREC != DYNAREC_NONE
Get_Sh4Recompiler(&sh4_cpu);
sh4_cpu.Init(); // Also initialize the interpreter
if(config::DynarecEnabled)
{
INFO_LOG(DYNAREC, "Using Recompiler");
}
else
#endif
{
Get_Sh4Interpreter(&sh4_cpu);
sh4_cpu.Init();
INFO_LOG(INTERPRETER, "Using Interpreter");
}
state = Init;
}
int getGamePlatform(const char *path)
{
if (path == NULL)
// Dreamcast BIOS
return DC_PLATFORM_DREAMCAST;
std::string extension = get_file_extension(path);
if (extension.empty())
return DC_PLATFORM_DREAMCAST; // unknown
if (extension == "zip" || extension == "7z")
return naomi_cart_GetPlatform(path);
if (extension == "bin" || extension == "dat" || extension == "lst")
return DC_PLATFORM_NAOMI;
return DC_PLATFORM_DREAMCAST;
}
void Emulator::loadGame(const char *path, LoadProgress *progress)
{
init();
try {
DEBUG_LOG(BOOT, "Loading game %s", path == nullptr ? "(nil)" : path);
if (path != nullptr)
settings.content.path = path;
else
settings.content.path.clear();
setPlatform(getGamePlatform(path));
mem_map_default();
config::Settings::instance().reset();
config::Settings::instance().load(false);
dc_reset(true);
memset(&settings.network.md5, 0, sizeof(settings.network.md5));
if (settings.platform.isNaomi2() && config::RendererType == RenderType::DirectX9)
throw FlycastException("DirectX 9 doesn't support Naomi 2 games. Select a different graphics API");
if (settings.platform.isConsole())
{
if (settings.content.path.empty())
{
// Boot BIOS
if (!LoadRomFiles())
throw FlycastException("No BIOS file found in " + hostfs::getFlashSavePath("", ""));
InitDrive("");
}
else
{
std::string extension = get_file_extension(settings.content.path);
if (extension != "elf")
{
if (InitDrive(settings.content.path))
{
loadGameSpecificSettings();
if (config::UseReios || !LoadRomFiles())
{
LoadHle();
NOTICE_LOG(BOOT, "Did not load BIOS, using reios");
if (!config::UseReios && config::UseReios.isReadOnly())
gui_display_notification("This game requires a real BIOS", 15000);
}
}
else
{
// Content load failed. Boot the BIOS
settings.content.path.clear();
if (!LoadRomFiles())
throw FlycastException("This media cannot be loaded");
InitDrive("");
}
}
else
{
// Elf only supported with HLE BIOS
LoadHle();
}
}
if (progress)
progress->progress = 1.0f;
}
else if (settings.platform.isArcade())
{
LoadRomFiles();
naomi_cart_LoadRom(path, progress);
loadGameSpecificSettings();
// Reload the BIOS in case a game-specific region is set
naomi_cart_LoadBios(path);
}
mcfg_DestroyDevices();
mcfg_CreateDevices();
if (settings.platform.isNaomi())
// Must be done after the maple devices are created and EEPROM is accessible
naomi_cart_ConfigureEEPROM();
cheatManager.reset(settings.content.gameId);
if (cheatManager.isWidescreen())
{
gui_display_notification("Widescreen cheat activated", 1000);
config::ScreenStretching.override(134); // 4:3 -> 16:9
}
// reload settings so that all settings can be overridden
loadGameSpecificSettings();
NetworkHandshake::init();
settings.input.fastForwardMode = false;
if (!settings.content.path.empty())
{
if (config::GGPOEnable)
dc_loadstate(-1);
else if (config::AutoLoadState && !NaomiNetworkSupported())
dc_loadstate(config::SavestateSlot);
}
EventManager::event(Event::Start);
if (progress)
{
#ifdef GDB_SERVER
if(config::GDBWaitForConnection)
progress->label = "Waiting for debugger...";
else
#endif
progress->label = "Starting...";
}
state = Loaded;
} catch (...) {
state = Error;
throw;
}
}
void Emulator::runInternal()
{
if (singleStep)
{
sh4_cpu.Step();
singleStep = false;
}
else if(stepRangeTo != 0)
{
while (Sh4cntx.pc >= stepRangeFrom && Sh4cntx.pc <= stepRangeTo)
sh4_cpu.Step();
stepRangeFrom = 0;
stepRangeTo = 0;
}
else
{
do {
resetRequested = false;
sh4_cpu.Run();
if (resetRequested)
{
SaveRomFiles();
dc_reset(false);
}
} while (resetRequested);
}
}
void Emulator::unloadGame()
{
stop();
if (state == Loaded || state == Error)
{
if (state == Loaded && config::AutoSaveState && !settings.content.path.empty())
dc_savestate(config::SavestateSlot);
dc_reset(true);
config::Settings::instance().reset();
config::Settings::instance().load(false);
settings.content.path.clear();
settings.content.gameId.clear();
state = Init;
EventManager::event(Event::Terminate);
}
}
void Emulator::term()
{
unloadGame();
if (state == Init)
{
debugger::term();
sh4_cpu.Term();
custom_texture.Terminate(); // lr: avoid deadlock on exit (win32)
reios_term();
libAICA_Term();
pvr::term();
mem_Term();
_vmem_release();
state = Terminated;
}
}
void Emulator::stop()
{
if (state != Running)
return;
// Avoid race condition with GGPO restarting the sh4 for a new frame
if (config::GGPOEnable)
NetworkHandshake::term();
// must be updated after GGPO is stopped since it may run some rollback frames
state = Loaded;
sh4_cpu.Stop();
if (config::ThreadedRendering)
{
rend_cancel_emu_wait();
try {
auto future = threadResult;
if(future.valid())
future.get();
} catch (const FlycastException& e) {
WARN_LOG(COMMON, "%s", e.what());
}
SaveRomFiles();
EventManager::event(Event::Pause);
}
else
{
#ifdef __ANDROID__
// defer stopping audio until after the current frame is finished
// normally only useful on android due to multithreading
stopRequested = true;
#else
TermAudio();
SaveRomFiles();
EventManager::event(Event::Pause);
#endif
}
}
// Called on the emulator thread for soft reset
void Emulator::requestReset()
{
resetRequested = true;
if (config::GGPOEnable)
NetworkHandshake::term();
sh4_cpu.Stop();
}
void loadGameSpecificSettings()
{
if (settings.platform.isConsole())
{
reios_disk_id();
settings.content.gameId = trim_trailing_ws(std::string(ip_meta.product_number, sizeof(ip_meta.product_number)));
if (settings.content.gameId.empty())
return;
}
else
{
settings.content.gameId = naomi_game_id;
}
// Default per-game settings
loadSpecialSettings();
config::Settings::instance().setGameId(settings.content.gameId);
// Reload per-game settings
config::Settings::instance().load(true);
if (config::ForceWindowsCE)
{
config::ExtraDepthScale.override(0.1f);
config::FullMMU.override(true);
}
}
void Emulator::step()
{
// FIXME single thread is better
singleStep = true;
start();
stop();
}
void Emulator::stepRange(u32 from, u32 to)
{
stepRangeFrom = from;
stepRangeTo = to;
start();
stop();
}
void dc_loadstate(Deserializer& deser)
{
custom_texture.Terminate();
#if FEAT_AREC == DYNAREC_JIT
aicaarm::recompiler::flush();
#endif
mmu_flush_table();
#if FEAT_SHREC != DYNAREC_NONE
bm_Reset();
#endif
memwatch::unprotect();
memwatch::reset();
dc_deserialize(deser);
mmu_set_state();
sh4_cpu.ResetCache();
}
void Emulator::setNetworkState(bool online)
{
if (settings.network.online != online)
DEBUG_LOG(NETWORK, "Network state %d", online);
settings.network.online = online;
settings.input.fastForwardMode &= !online;
}
EventManager EventManager::Instance;
void EventManager::registerEvent(Event event, Callback callback, void *param)
{
unregisterEvent(event, callback, param);
auto it = callbacks.find(event);
if (it != callbacks.end())
it->second.push_back(std::make_pair(callback, param));
else
callbacks.insert({ event, { std::make_pair(callback, param) } });
}
void EventManager::unregisterEvent(Event event, Callback callback, void *param) {
auto it = callbacks.find(event);
if (it == callbacks.end())
return;
auto it2 = std::find(it->second.begin(), it->second.end(), std::make_pair(callback, param));
if (it2 == it->second.end())
return;
it->second.erase(it2);
}
void EventManager::broadcastEvent(Event event) {
auto it = callbacks.find(event);
if (it == callbacks.end())
return;
for (auto& pair : it->second)
pair.first(event, pair.second);
}
void Emulator::run()
{
verify(state == Running);
startTime = sh4_sched_now64();
renderTimeout = false;
try {
runInternal();
if (ggpo::active())
ggpo::nextFrame();
} catch (...) {
setNetworkState(false);
state = Error;
sh4_cpu.Stop();
EventManager::event(Event::Pause);
throw;
}
}
void Emulator::start()
{
if (state == Running)
return;
verify(state == Loaded);
state = Running;
SetMemoryHandlers();
if (config::GGPOEnable && config::ThreadedRendering)
// Not supported with GGPO
config::EmulateFramebuffer.override(false);
#if FEAT_SHREC != DYNAREC_NONE
if (config::DynarecEnabled)
{
Get_Sh4Recompiler(&sh4_cpu);
INFO_LOG(DYNAREC, "Using Recompiler");
}
else
#endif
{
Get_Sh4Interpreter(&sh4_cpu);
INFO_LOG(DYNAREC, "Using Interpreter");
}
memwatch::protect();
if (config::ThreadedRendering)
{
const std::lock_guard<std::mutex> lock(mutex);
threadResult = std::async(std::launch::async, [this] {
InitAudio();
try {
while (state == Running || singleStep || stepRangeTo != 0)
{
startTime = sh4_sched_now64();
renderTimeout = false;
runInternal();
if (!ggpo::nextFrame())
break;
}
TermAudio();
} catch (...) {
setNetworkState(false);
state = Error;
sh4_cpu.Stop();
TermAudio();
throw;
}
}).share();
}
else
{
stopRequested = false;
InitAudio();
}
EventManager::event(Event::Resume);
}
bool Emulator::checkStatus()
{
try {
const std::lock_guard<std::mutex> lock(mutex);
if (threadResult.valid())
{
auto result = threadResult.wait_for(std::chrono::seconds(0));
if (result == std::future_status::timeout)
return true;
threadResult.get();
}
return false;
} catch (...) {
EventManager::event(Event::Pause);
throw;
}
}
bool Emulator::render()
{
FC_PROFILE_SCOPE;
if (!config::ThreadedRendering)
{
if (state != Running)
return false;
run();
if (stopRequested)
{
stopRequested = false;
TermAudio();
SaveRomFiles();
EventManager::event(Event::Pause);
}
// TODO if stopping due to a user request, no frame has been rendered
return !renderTimeout;
}
if (!checkStatus())
return false;
if (state != Running)
return false;
return rend_single_frame(true); // FIXME stop flag?
}
void Emulator::vblank()
{
EventManager::event(Event::VBlank);
// Time out if a frame hasn't been rendered for 50 ms
if (sh4_sched_now64() - startTime <= 10000000)
return;
renderTimeout = true;
if (ggpo::active())
ggpo::endOfFrame();
else if (!config::ThreadedRendering)
sh4_cpu.Stop();
}
Emulator emu;
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