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libretro.cpp
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libretro.cpp
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#include <cstring>
#include <cassert>
#include <thread>
#include <atomic>
#include <vector>
#include "base/timeutil.h"
#include "Common/ChunkFile.h"
#include "Core/Config.h"
#include "Core/ConfigValues.h"
#include "Core/Core.h"
#include "Core/HLE/sceCtrl.h"
#include "Core/HLE/sceUtility.h"
#include "Core/HLE/__sceAudio.h"
#include "Core/HW/MemoryStick.h"
#include "Core/Host.h"
#include "Core/MemMap.h"
#include "Core/System.h"
#include "Log.h"
#include "LogManager.h"
#include "ConsoleListener.h"
#include "file/vfs.h"
#include "file/zip_read.h"
#include "GPU/GPUState.h"
#include "GPU/GPUInterface.h"
#include "GPU/Common/FramebufferCommon.h"
#include "GPU/Common/TextureScalerCommon.h"
#include "input/input_state.h"
#include "base/NativeApp.h"
#include "thread/threadutil.h"
#include "libretro/libretro.h"
#include "libretro/LibretroGraphicsContext.h"
#define DIR_SEP "/"
#ifdef _WIN32
#define DIR_SEP_CHRS "/\\"
#else
#define DIR_SEP_CHRS "/"
#endif
#define SAMPLERATE 44100
namespace Libretro {
LibretroGraphicsContext *ctx;
retro_environment_t environ_cb;
static retro_audio_sample_batch_t audio_batch_cb;
static retro_input_poll_t input_poll_cb;
static retro_input_state_t input_state_cb;
} // namespace Libretro
using namespace Libretro;
class LibretroHost : public Host {
public:
LibretroHost() {}
bool InitGraphics(std::string *error_message, GraphicsContext **ctx) override { return true; }
void ShutdownGraphics() override {}
void InitSound() override {}
void UpdateSound() override {
extern int hostAttemptBlockSize;
const int blockSizeMax = 512;
static int16_t audio[blockSizeMax * 2];
assert(hostAttemptBlockSize <= blockSizeMax);
int samples = __AudioMix(audio, hostAttemptBlockSize, SAMPLERATE);
audio_batch_cb(audio, samples);
}
void ShutdownSound() override {}
bool IsDebuggingEnabled() override { return false; }
bool AttemptLoadSymbolMap() override { return false; }
};
class PrintfLogger : public LogListener {
public:
PrintfLogger(retro_log_callback log) : log_(log.log) {}
void Log(const LogMessage &message) {
switch (message.level) {
case LogTypes::LVERBOSE:
case LogTypes::LDEBUG:
log_(RETRO_LOG_DEBUG, "[%s] %s", message.log, message.msg.c_str());
return;
case LogTypes::LERROR:
log_(RETRO_LOG_ERROR, "[%s] %s", message.log, message.msg.c_str());
return;
case LogTypes::LNOTICE:
case LogTypes::LWARNING:
log_(RETRO_LOG_WARN, "[%s] %s", message.log, message.msg.c_str());
return;
case LogTypes::LINFO:
default:
log_(RETRO_LOG_INFO, "[%s] %s", message.log, message.msg.c_str());
return;
}
}
private:
retro_log_printf_t log_;
};
static PrintfLogger *printfLogger;
template <typename T> class RetroOption {
public:
RetroOption(const char *id, const char *name, std::initializer_list<std::pair<const char *, T>> list) : id_(id), name_(name), list_(list.begin(), list.end()) {}
RetroOption(const char *id, const char *name, std::initializer_list<const char *> list) : id_(id), name_(name) {
for (auto option : list)
list_.push_back({ option, (T)list_.size() });
}
RetroOption(const char *id, const char *name, T first, std::initializer_list<const char *> list) : id_(id), name_(name) {
for (auto option : list)
list_.push_back({ option, first + (int)list_.size() });
}
RetroOption(const char *id, const char *name, T first, int count, int step = 1) : id_(id), name_(name) {
for (T i = first; i < first + count; i += step)
list_.push_back({ std::to_string(i), i });
}
RetroOption(const char *id, const char *name, bool initial) : id_(id), name_(name) {
list_.push_back({ initial ? "enabled" : "disabled", initial });
list_.push_back({ !initial ? "enabled" : "disabled", !initial });
}
retro_variable GetOptions() {
if (options_.empty()) {
options_ = name_;
options_.push_back(';');
for (auto &option : list_) {
if (option.first == list_.begin()->first)
options_ += std::string(" ") + option.first;
else
options_ += std::string("|") + option.first;
}
}
return { id_, options_.c_str() };
}
bool Update(T *dest) {
retro_variable var{ id_ };
T val = list_.front().second;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
for (auto option : list_) {
if (option.first == var.value) {
val = option.second;
break;
}
}
}
if (*dest != val) {
*dest = val;
return true;
}
return false;
}
private:
const char *id_;
const char *name_;
std::string options_;
std::vector<std::pair<std::string, T>> list_;
};
static RetroOption<CPUCore> ppsspp_cpu_core("ppsspp_cpu_core", "CPU Core", { { "jit", CPUCore::JIT }, { "IR jit", CPUCore::IR_JIT }, { "interpreter", CPUCore::INTERPRETER } });
static RetroOption<int> ppsspp_locked_cpu_speed("ppsspp_locked_cpu_speed", "Locked CPU Speed", { { "off", 0 }, { "222MHz", 222 }, { "266MHz", 266 }, { "333MHz", 333 } });
static RetroOption<int> ppsspp_language("ppsspp_language", "Language", { { "automatic", -1 }, { "english", PSP_SYSTEMPARAM_LANGUAGE_ENGLISH }, { "japanese", PSP_SYSTEMPARAM_LANGUAGE_JAPANESE }, { "french", PSP_SYSTEMPARAM_LANGUAGE_FRENCH }, { "spanish", PSP_SYSTEMPARAM_LANGUAGE_SPANISH }, { "german", PSP_SYSTEMPARAM_LANGUAGE_GERMAN }, { "italian", PSP_SYSTEMPARAM_LANGUAGE_ITALIAN }, { "dutch", PSP_SYSTEMPARAM_LANGUAGE_DUTCH }, { "portuguese", PSP_SYSTEMPARAM_LANGUAGE_PORTUGUESE }, { "russian", PSP_SYSTEMPARAM_LANGUAGE_RUSSIAN }, { "korean", PSP_SYSTEMPARAM_LANGUAGE_KOREAN }, { "chinese_traditional", PSP_SYSTEMPARAM_LANGUAGE_CHINESE_TRADITIONAL }, { "chinese_simplified", PSP_SYSTEMPARAM_LANGUAGE_CHINESE_SIMPLIFIED } });
static RetroOption<int> ppsspp_rendering_mode("ppsspp_rendering_mode", "Rendering Mode", { { "buffered", FB_BUFFERED_MODE }, { "nonbuffered", FB_NON_BUFFERED_MODE } });
static RetroOption<bool> ppsspp_true_color("ppsspp_true_color", "True Color Depth", true);
static RetroOption<bool> ppsspp_auto_frameskip("ppsspp_auto_frameskip", "Auto Frameskip", false);
static RetroOption<int> ppsspp_frameskip("ppsspp_frameskip", "Frameskip", 0, 10);
static RetroOption<int> ppsspp_frameskiptype("ppsspp_frameskiptype", "Frameskip Type", 0, 10);
static RetroOption<int> ppsspp_force_max_fps("ppsspp_force_max_fps", "Force Max FPS", { { "disabled", 0 }, { "enabled", 60 } });
static RetroOption<int> ppsspp_audio_latency("ppsspp_audio_latency", "Audio latency", { "low", "medium", "high" });
static RetroOption<int> ppsspp_internal_resolution("ppsspp_internal_resolution", "Internal Resolution", 1, { "480x272", "960x544", "1440x816", "1920x1088", "2400x1360", "2880x1632", "3360x1904", "3840x2176", "4320x2448", "4800x2720" });
static RetroOption<int> ppsspp_button_preference("ppsspp_button_preference", "Confirmation Button", { { "cross", PSP_SYSTEMPARAM_BUTTON_CROSS }, { "circle", PSP_SYSTEMPARAM_BUTTON_CIRCLE } });
static RetroOption<bool> ppsspp_fast_memory("ppsspp_fast_memory", "Fast Memory (Speedhack)", true);
static RetroOption<bool> ppsspp_block_transfer_gpu("ppsspp_block_transfer_gpu", "Block Transfer GPU", true);
static RetroOption<int> ppsspp_texture_scaling_level("ppsspp_texture_scaling_level", "Texture Scaling Level", { { "1", 1 }, { "2", 2 }, { "3", 3 }, { "4", 4 }, { "5", 5 }, { "0", 0 } });
static RetroOption<int> ppsspp_texture_scaling_type("ppsspp_texture_scaling_type", "Texture Scaling Type", { { "xbrz", TextureScalerCommon::XBRZ }, { "hybrid", TextureScalerCommon::HYBRID }, { "bicubic", TextureScalerCommon::BICUBIC }, { "hybrid_bicubic", TextureScalerCommon::HYBRID_BICUBIC } });
static RetroOption<int> ppsspp_texture_filtering("ppsspp_texture_filtering", "Texture Filtering", { { "auto", 1 }, { "nearest", 2 }, { "linear", 3 }, { "linear(FMV)", 4 } });
static RetroOption<int> ppsspp_texture_anisotropic_filtering("ppsspp_texture_anisotropic_filtering", "Anisotropic Filtering", { "off", "1x", "2x", "4x", "8x", "16x" });
static RetroOption<bool> ppsspp_texture_deposterize("ppsspp_texture_deposterize", "Texture Deposterize", false);
static RetroOption<bool> ppsspp_texture_replacement("ppsspp_texture_replacement", "Texture Replacement", false);
static RetroOption<bool> ppsspp_gpu_hardware_transform("ppsspp_gpu_hardware_transform", "GPU Hardware T&L", true);
static RetroOption<bool> ppsspp_vertex_cache("ppsspp_vertex_cache", "Vertex Cache (Speedhack)", true);
static RetroOption<bool> ppsspp_separate_io_thread("ppsspp_separate_io_thread", "IO Threading", false);
static RetroOption<bool> ppsspp_unsafe_func_replacements("ppsspp_unsafe_func_replacements", "Unsafe FuncReplacements", true);
static RetroOption<bool> ppsspp_sound_speedhack("ppsspp_sound_speedhack", "Sound Speedhack", false);
static RetroOption<bool> ppsspp_cheats("ppsspp_cheats", "Internal Cheats Support", false);
void retro_set_environment(retro_environment_t cb) {
std::vector<retro_variable> vars;
vars.push_back(ppsspp_cpu_core.GetOptions());
vars.push_back(ppsspp_locked_cpu_speed.GetOptions());
vars.push_back(ppsspp_language.GetOptions());
vars.push_back(ppsspp_rendering_mode.GetOptions());
vars.push_back(ppsspp_true_color.GetOptions());
vars.push_back(ppsspp_auto_frameskip.GetOptions());
vars.push_back(ppsspp_frameskip.GetOptions());
vars.push_back(ppsspp_frameskiptype.GetOptions());
vars.push_back(ppsspp_force_max_fps.GetOptions());
vars.push_back(ppsspp_audio_latency.GetOptions());
vars.push_back(ppsspp_internal_resolution.GetOptions());
vars.push_back(ppsspp_button_preference.GetOptions());
vars.push_back(ppsspp_fast_memory.GetOptions());
vars.push_back(ppsspp_block_transfer_gpu.GetOptions());
vars.push_back(ppsspp_texture_scaling_level.GetOptions());
vars.push_back(ppsspp_texture_scaling_type.GetOptions());
vars.push_back(ppsspp_texture_filtering.GetOptions());
vars.push_back(ppsspp_texture_anisotropic_filtering.GetOptions());
vars.push_back(ppsspp_texture_deposterize.GetOptions());
vars.push_back(ppsspp_texture_replacement.GetOptions());
vars.push_back(ppsspp_gpu_hardware_transform.GetOptions());
vars.push_back(ppsspp_vertex_cache.GetOptions());
vars.push_back(ppsspp_separate_io_thread.GetOptions());
vars.push_back(ppsspp_unsafe_func_replacements.GetOptions());
vars.push_back(ppsspp_sound_speedhack.GetOptions());
vars.push_back(ppsspp_cheats.GetOptions());
vars.push_back({});
environ_cb = cb;
cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars.data());
}
static int get_language_auto(void) {
retro_language val = RETRO_LANGUAGE_ENGLISH;
environ_cb(RETRO_ENVIRONMENT_GET_LANGUAGE, &val);
switch (val) {
default:
case RETRO_LANGUAGE_ENGLISH:
return PSP_SYSTEMPARAM_LANGUAGE_ENGLISH;
case RETRO_LANGUAGE_JAPANESE:
return PSP_SYSTEMPARAM_LANGUAGE_JAPANESE;
case RETRO_LANGUAGE_FRENCH:
return PSP_SYSTEMPARAM_LANGUAGE_FRENCH;
case RETRO_LANGUAGE_GERMAN:
return PSP_SYSTEMPARAM_LANGUAGE_GERMAN;
case RETRO_LANGUAGE_SPANISH:
return PSP_SYSTEMPARAM_LANGUAGE_SPANISH;
case RETRO_LANGUAGE_ITALIAN:
return PSP_SYSTEMPARAM_LANGUAGE_ITALIAN;
case RETRO_LANGUAGE_PORTUGUESE_BRAZIL:
case RETRO_LANGUAGE_PORTUGUESE_PORTUGAL:
return PSP_SYSTEMPARAM_LANGUAGE_PORTUGUESE;
case RETRO_LANGUAGE_RUSSIAN:
return PSP_SYSTEMPARAM_LANGUAGE_RUSSIAN;
case RETRO_LANGUAGE_DUTCH:
return PSP_SYSTEMPARAM_LANGUAGE_DUTCH;
case RETRO_LANGUAGE_KOREAN:
return PSP_SYSTEMPARAM_LANGUAGE_KOREAN;
case RETRO_LANGUAGE_CHINESE_TRADITIONAL:
return PSP_SYSTEMPARAM_LANGUAGE_CHINESE_TRADITIONAL;
case RETRO_LANGUAGE_CHINESE_SIMPLIFIED:
return PSP_SYSTEMPARAM_LANGUAGE_CHINESE_SIMPLIFIED;
}
}
static void check_variables(CoreParameter &coreParam) {
bool updated = false;
if (coreState != CORE_POWERUP && environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && !updated)
return;
ppsspp_button_preference.Update(&g_Config.iButtonPreference);
ppsspp_fast_memory.Update(&g_Config.bFastMemory);
ppsspp_vertex_cache.Update(&g_Config.bVertexCache);
ppsspp_gpu_hardware_transform.Update(&g_Config.bHardwareTransform);
ppsspp_frameskip.Update(&g_Config.iFrameSkip);
ppsspp_frameskiptype.Update(&g_Config.iFrameSkipType);
ppsspp_audio_latency.Update(&g_Config.iAudioLatency);
ppsspp_true_color.Update(&g_Config.bTrueColor);
ppsspp_auto_frameskip.Update(&g_Config.bAutoFrameSkip);
ppsspp_block_transfer_gpu.Update(&g_Config.bBlockTransferGPU);
ppsspp_texture_filtering.Update(&g_Config.iTexFiltering);
ppsspp_texture_anisotropic_filtering.Update(&g_Config.iAnisotropyLevel);
ppsspp_texture_deposterize.Update(&g_Config.bTexDeposterize);
ppsspp_texture_replacement.Update(&g_Config.bReplaceTextures);
ppsspp_separate_io_thread.Update(&g_Config.bSeparateIOThread);
ppsspp_unsafe_func_replacements.Update(&g_Config.bFuncReplacements);
ppsspp_sound_speedhack.Update(&g_Config.bSoundSpeedHack);
ppsspp_cheats.Update(&g_Config.bEnableCheats);
ppsspp_locked_cpu_speed.Update(&g_Config.iLockedCPUSpeed);
ppsspp_rendering_mode.Update(&g_Config.iRenderingMode);
ppsspp_force_max_fps.Update(&g_Config.iForceMaxEmulatedFPS);
ppsspp_cpu_core.Update((CPUCore *)&g_Config.iCpuCore);
ppsspp_language.Update(&g_Config.iLanguage);
if (g_Config.iLanguage < 0) {
g_Config.iLanguage = get_language_auto();
}
if (ppsspp_internal_resolution.Update(&g_Config.iInternalResolution)) {
coreParam.pixelWidth = coreParam.renderWidth = g_Config.iInternalResolution * 480;
coreParam.pixelHeight = coreParam.renderHeight = g_Config.iInternalResolution * 272;
if (gpu) {
retro_system_av_info av_info;
retro_get_system_av_info(&av_info);
environ_cb(RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO, &av_info);
gpu->Resized();
}
}
if (ppsspp_texture_scaling_type.Update(&g_Config.iTexScalingType) && gpu) {
gpu->ClearCacheNextFrame();
}
if (ppsspp_texture_scaling_level.Update(&g_Config.iTexScalingLevel) && gpu) {
gpu->ClearCacheNextFrame();
}
}
void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; }
void retro_set_audio_sample(retro_audio_sample_t cb) { (void)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; }
void retro_init(void) {
#if 0
g_Config.Load("");
#endif
g_Config.bEnableLogging = true;
g_Config.bFrameSkipUnthrottle = false;
g_Config.bMemStickInserted = PSP_MEMORYSTICK_STATE_INSERTED;
g_Config.iGlobalVolume = VOLUME_MAX - 1;
g_Config.bEnableSound = true;
g_Config.bAudioResampler = false;
g_Config.iCwCheatRefreshRate = 60;
LogManager::Init();
host = new LibretroHost;
struct retro_log_callback log;
if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log)) {
printfLogger = new PrintfLogger(log);
LogManager *logman = LogManager::GetInstance();
logman->RemoveListener(logman->GetConsoleListener());
logman->RemoveListener(logman->GetDebuggerListener());
logman->ChangeFileLog(nullptr);
logman->AddListener(printfLogger);
#if 1
logman->SetAllLogLevels(LogTypes::LINFO);
#endif
}
}
void retro_deinit(void) {
LogManager::Shutdown();
delete printfLogger;
printfLogger = nullptr;
delete host;
host = nullptr;
}
void retro_set_controller_port_device(unsigned port, unsigned device) {
(void)port;
(void)device;
}
void retro_get_system_info(struct retro_system_info *info) {
*info = {};
info->library_name = "PPSSPP";
info->library_version = PPSSPP_GIT_VERSION;
info->need_fullpath = true;
info->valid_extensions = "elf|iso|cso|prx|pbp";
}
void retro_get_system_av_info(struct retro_system_av_info *info) {
*info = {};
info->timing.fps = 60.0f / 1.001f;
info->timing.sample_rate = SAMPLERATE;
info->geometry.base_width = g_Config.iInternalResolution * 480;
info->geometry.base_height = g_Config.iInternalResolution * 272;
info->geometry.max_width = g_Config.iInternalResolution * 480;
info->geometry.max_height = g_Config.iInternalResolution * 272;
info->geometry.aspect_ratio = 16.0 / 9.0;
}
unsigned retro_api_version(void) { return RETRO_API_VERSION; }
namespace Libretro {
bool useEmuThread = false;
std::atomic<EmuThreadState> emuThreadState(EmuThreadState::DISABLED);
static std::thread emuThread;
static void EmuFrame() {
ctx->SetRenderTarget();
if (ctx->GetDrawContext()) {
ctx->GetDrawContext()->BeginFrame();
}
gpu->BeginHostFrame();
coreState = CORE_RUNNING;
PSP_RunLoopUntil(UINT64_MAX);
gpu->EndHostFrame();
if (ctx->GetDrawContext()) {
ctx->GetDrawContext()->EndFrame();
}
}
static void EmuThreadFunc() {
setCurrentThreadName("Emu");
while (true) {
switch ((EmuThreadState)emuThreadState) {
case EmuThreadState::START_REQUESTED:
emuThreadState = EmuThreadState::RUNNING;
/* fallthrough */
case EmuThreadState::RUNNING:
EmuFrame();
break;
case EmuThreadState::PAUSE_REQUESTED:
emuThreadState = EmuThreadState::PAUSED;
/* fallthrough */
case EmuThreadState::PAUSED:
sleep_ms(1);
break;
default:
case EmuThreadState::QUIT_REQUESTED:
emuThreadState = EmuThreadState::STOPPED;
ctx->StopThread();
return;
}
}
}
void EmuThreadStart() {
bool wasPaused = emuThreadState == EmuThreadState::PAUSED;
emuThreadState = EmuThreadState::START_REQUESTED;
if (!wasPaused) {
ctx->ThreadStart();
emuThread = std::thread(&EmuThreadFunc);
}
}
void EmuThreadStop() {
if (emuThreadState != EmuThreadState::RUNNING) {
return;
}
emuThreadState = EmuThreadState::QUIT_REQUESTED;
while (ctx->ThreadFrame()) {
// Need to keep eating frames to allow the EmuThread to exit correctly.
continue;
}
emuThread.join();
emuThread = std::thread();
ctx->ThreadEnd();
}
void EmuThreadPause() {
if (emuThreadState != EmuThreadState::RUNNING) {
return;
}
emuThreadState = EmuThreadState::PAUSE_REQUESTED;
ctx->ThreadFrame();
while (emuThreadState != EmuThreadState::PAUSED) {
sleep_ms(1);
}
}
} // namespace Libretro
bool retro_load_game(const struct retro_game_info *game) {
struct retro_input_descriptor desc[] = {
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
{ 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Analog X" },
{ 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Analog Y" },
{ 0 },
};
environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc);
enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_XRGB8888;
if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
ERROR_LOG(SYSTEM, "XRGB8888 is not supported.\n");
return false;
}
const char *nickname = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_USERNAME, &nickname) && nickname) {
g_Config.sNickName = std::string(nickname);
}
const char *dir_ptr = NULL;
static std::string retro_base_dir;
static std::string retro_save_dir;
if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir_ptr) && dir_ptr) {
retro_base_dir = dir_ptr;
// Make sure that we don't have any lingering slashes, etc, as they break Windows.
size_t last = retro_base_dir.find_last_not_of(DIR_SEP_CHRS);
if (last != std::string::npos)
last++;
retro_base_dir = retro_base_dir.substr(0, last) + DIR_SEP;
}
if (environ_cb(RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY, &dir_ptr) && dir_ptr) {
retro_save_dir = dir_ptr;
// Make sure that we don't have any lingering slashes, etc, as they break Windows.
size_t last = retro_save_dir.find_last_not_of(DIR_SEP_CHRS);
if (last != std::string::npos)
last++;
retro_save_dir = retro_save_dir.substr(0, last) + DIR_SEP;
}
if (retro_base_dir.empty()) {
retro_base_dir = File::GetDir(game->path);
}
retro_base_dir += "PPSSPP" DIR_SEP;
if (retro_save_dir.empty()) {
retro_save_dir = File::GetDir(game->path);
}
g_Config.currentDirectory = retro_base_dir;
g_Config.externalDirectory = retro_base_dir;
g_Config.memStickDirectory = retro_save_dir;
g_Config.flash0Directory = retro_base_dir + "flash0" DIR_SEP;
g_Config.internalDataDirectory = retro_base_dir;
VFSRegister("", new DirectoryAssetReader(retro_base_dir.c_str()));
coreState = CORE_POWERUP;
ctx = LibretroGraphicsContext::CreateGraphicsContext();
INFO_LOG(SYSTEM, "Using %s backend", ctx->Ident());
Core_SetGraphicsContext(ctx);
SetGPUBackend((GPUBackend)g_Config.iGPUBackend);
useEmuThread = ctx->GetGPUCore() == GPUCORE_GLES;
CoreParameter coreParam = {};
coreParam.enableSound = true;
coreParam.fileToStart = std::string(game->path);
coreParam.mountIso = "";
coreParam.startBreak = false;
coreParam.printfEmuLog = true;
coreParam.headLess = true;
coreParam.unthrottle = true;
coreParam.graphicsContext = ctx;
coreParam.gpuCore = ctx->GetGPUCore();
coreParam.cpuCore = CPUCore::JIT;
check_variables(coreParam);
#if 0
g_Config.bVertexDecoderJit = (coreParam.cpuCore == CPU_JIT) ? true : false;
#endif
std::string error_string;
if (!PSP_InitStart(coreParam, &error_string)) {
ERROR_LOG(BOOT, "%s", error_string.c_str());
return false;
}
return true;
}
void retro_unload_game(void) {
if (Libretro::useEmuThread) {
Libretro::EmuThreadStop();
}
PSP_Shutdown();
VFSShutdown();
delete ctx;
ctx = nullptr;
PSP_CoreParameter().graphicsContext = nullptr;
}
void retro_reset(void) {
std::string error_string;
PSP_Shutdown();
#if 0
coreState = CORE_POWERUP;
if (!PSP_InitStart(PSP_CoreParameter(), &error_string))
{
ERROR_LOG(BOOT, "%s", error_string.c_str());
environ_cb(RETRO_ENVIRONMENT_SHUTDOWN, nullptr);
}
#else
if (!PSP_Init(PSP_CoreParameter(), &error_string)) {
ERROR_LOG(BOOT, "%s", error_string.c_str());
environ_cb(RETRO_ENVIRONMENT_SHUTDOWN, nullptr);
}
#endif
}
static void retro_input(void) {
// clang-format off
static struct
{
u32 retro;
u32 sceCtrl;
} map[] = {
{ RETRO_DEVICE_ID_JOYPAD_UP, CTRL_UP },
{ RETRO_DEVICE_ID_JOYPAD_DOWN, CTRL_DOWN },
{ RETRO_DEVICE_ID_JOYPAD_LEFT, CTRL_LEFT },
{ RETRO_DEVICE_ID_JOYPAD_RIGHT, CTRL_RIGHT },
{ RETRO_DEVICE_ID_JOYPAD_X, CTRL_TRIANGLE },
{ RETRO_DEVICE_ID_JOYPAD_A, CTRL_CIRCLE },
{ RETRO_DEVICE_ID_JOYPAD_B, CTRL_CROSS },
{ RETRO_DEVICE_ID_JOYPAD_Y, CTRL_SQUARE },
{ RETRO_DEVICE_ID_JOYPAD_L, CTRL_LTRIGGER },
{ RETRO_DEVICE_ID_JOYPAD_R, CTRL_RTRIGGER },
{ RETRO_DEVICE_ID_JOYPAD_START, CTRL_START },
{ RETRO_DEVICE_ID_JOYPAD_SELECT, CTRL_SELECT },
};
// clang-format on
input_poll_cb();
for (int i = 0; i < sizeof(map) / sizeof(*map); i++) {
if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, map[i].retro)) {
__CtrlButtonDown(map[i].sceCtrl);
} else {
__CtrlButtonUp(map[i].sceCtrl);
}
}
__CtrlSetAnalogX(input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X) / 32768.0f);
__CtrlSetAnalogY(input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y) / -32768.0f);
}
void retro_run(void) {
if (PSP_IsIniting()) {
std::string error_string;
#if 0
if (!PSP_InitUpdate(&error_string))
{
graphics_context->SwapBuffers();
return;
}
#else
while (!PSP_InitUpdate(&error_string)) {
sleep_ms(4);
}
#endif
if (!PSP_IsInited()) {
ERROR_LOG(BOOT, "%s", error_string.c_str());
environ_cb(RETRO_ENVIRONMENT_SHUTDOWN, nullptr);
return;
}
}
check_variables(PSP_CoreParameter());
retro_input();
if (useEmuThread) {
if (emuThreadState != EmuThreadState::RUNNING) {
EmuThreadStart();
}
if (!ctx->ThreadFrame()) {
return;
}
} else {
EmuFrame();
}
ctx->SwapBuffers();
}
unsigned retro_get_region(void) { return RETRO_REGION_NTSC; }
bool retro_load_game_special(unsigned type, const struct retro_game_info *info, size_t num) {
(void)type;
(void)info;
(void)num;
return false;
}
namespace SaveState {
struct SaveStart {
void DoState(PointerWrap &p);
};
} // namespace SaveState
size_t retro_serialize_size(void) {
SaveState::SaveStart state;
return (CChunkFileReader::MeasurePtr(state) + 0x800000) & ~0x7FFFFF;
}
bool retro_serialize(void *data, size_t size) {
SaveState::SaveStart state;
assert(CChunkFileReader::MeasurePtr(state) <= size);
return CChunkFileReader::SavePtr((u8 *)data, state) == CChunkFileReader::ERROR_NONE;
}
bool retro_unserialize(const void *data, size_t size) {
SaveState::SaveStart state;
return CChunkFileReader::LoadPtr((u8 *)data, state) == CChunkFileReader::ERROR_NONE;
}
void *retro_get_memory_data(unsigned id) {
if ( id == RETRO_MEMORY_SYSTEM_RAM ) {
return Memory::GetPointerUnchecked(PSP_GetKernelMemoryBase()) ;
}
return NULL;
}
size_t retro_get_memory_size(unsigned id) {
if ( id == RETRO_MEMORY_SYSTEM_RAM ) {
return Memory::g_MemorySize ;
}
return 0;
}
void retro_cheat_reset(void) {}
void retro_cheat_set(unsigned index, bool enabled, const char *code) {
(void)index;
(void)enabled;
(void)code;
}
int System_GetPropertyInt(SystemProperty prop) {
switch (prop) {
case SYSPROP_AUDIO_SAMPLE_RATE:
return SAMPLERATE;
case SYSPROP_DISPLAY_REFRESH_RATE:
return 60000;
default:
return -1;
}
}
std::string System_GetProperty(SystemProperty prop) { return ""; }
void System_SendMessage(const char *command, const char *parameter) {}
void NativeUpdate() {}
void NativeRender(GraphicsContext *graphicsContext) {}
void NativeResized() {}
bool System_InputBoxGetWString(const wchar_t *title, const std::wstring &defaultvalue, std::wstring &outvalue) { return false; }