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ppsspp/libretro/libretro.cpp
Henrik Rydgård 1c753e4a22 Use hacky methods to retrieve SD card directory if available. 
This will disappear in future Android versions but can be useful for
older devices.

Fixes (or at least tries to) #10199, at least for some devices.

Might help #13827 ?

Tested on Pocophone F1.
2021-01-07 00:55:35 +01:00

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#include <cstring>
#include <cassert>
#include <thread>
#include <atomic>
#include <vector>
#include <cstdlib>
#include "Common/Log.h"
#include "Common/LogManager.h"
#include "Common/System/Display.h"
#include "Common/System/NativeApp.h"
#include "Common/System/System.h"
#include "Common/TimeUtil.h"
#include "Common/File/FileUtil.h"
#include "Common/Serialize/Serializer.h"
#include "Common/ConsoleListener.h"
#include "Common/Input/InputState.h"
#include "Common/Thread/ThreadUtil.h"
#include "Common/File/VFS/VFS.h"
#include "Common/File/VFS/AssetReader.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 "GPU/GPUState.h"
#include "GPU/GPUInterface.h"
#include "GPU/Common/FramebufferManagerCommon.h"
#include "GPU/Common/TextureScalerCommon.h"
#include "GPU/Common/PresentationCommon.h"
#include "libretro/libretro.h"
#include "libretro/LibretroGraphicsContext.h"
#if PPSSPP_PLATFORM(ANDROID)
#include <sys/system_properties.h>
#endif
#define DIR_SEP "/"
#ifdef _WIN32
#define DIR_SEP_CHRS "/\\"
#else
#define DIR_SEP_CHRS "/"
#endif
#define SAMPLERATE 44100
static bool libretro_supports_bitmasks = false;
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());
break;
case LogTypes::LERROR:
log_(RETRO_LOG_ERROR, "[%s] %s",
message.log, message.msg.c_str());
break;
case LogTypes::LNOTICE:
case LogTypes::LWARNING:
log_(RETRO_LOG_WARN, "[%s] %s",
message.log, message.msg.c_str());
break;
case LogTypes::LINFO:
default:
log_(RETRO_LOG_INFO, "[%s] %s",
message.log, message.msg.c_str());
break;
}
}
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_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_internal_resolution("ppsspp_internal_resolution", "Internal Resolution (restart)", 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<int> ppsspp_lower_resolution_for_effects("ppsspp_lower_resolution_for_effects", "Lower resolution for effects", { "off", "safe", "balanced", "aggressive" });
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_unsafe_func_replacements("ppsspp_unsafe_func_replacements", "Unsafe FuncReplacements", true);
static RetroOption<bool> ppsspp_cheats("ppsspp_cheats", "Internal Cheats Support", false);
static RetroOption<IOTimingMethods> ppsspp_io_timing_method("ppsspp_io_timing_method", "IO Timing Method", { { "Fast", IOTimingMethods::IOTIMING_FAST }, { "Host", IOTimingMethods::IOTIMING_HOST }, { "Simulate UMD delays", IOTimingMethods::IOTIMING_REALISTIC } });
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_auto_frameskip.GetOptions());
vars.push_back(ppsspp_frameskip.GetOptions());
vars.push_back(ppsspp_frameskiptype.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_unsafe_func_replacements.GetOptions());
vars.push_back(ppsspp_cheats.GetOptions());
vars.push_back(ppsspp_io_timing_method.GetOptions());
vars.push_back(ppsspp_lower_resolution_for_effects.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_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_unsafe_func_replacements.Update(&g_Config.bFuncReplacements);
ppsspp_cheats.Update(&g_Config.bEnableCheats);
ppsspp_locked_cpu_speed.Update(&g_Config.iLockedCPUSpeed);
ppsspp_rendering_mode.Update(&g_Config.iRenderingMode);
ppsspp_cpu_core.Update((CPUCore *)&g_Config.iCpuCore);
ppsspp_io_timing_method.Update((IOTimingMethods *)&g_Config.iIOTimingMethod);
ppsspp_lower_resolution_for_effects.Update(&g_Config.iBloomHack);
ppsspp_language.Update(&g_Config.iLanguage);
if (g_Config.iLanguage < 0)
g_Config.iLanguage = get_language_auto();
if (!PSP_IsInited() && 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)
{
struct retro_log_callback log;
#if 0
g_Config.Load("");
#endif
g_Config.bEnableLogging = true;
g_Config.iUnthrottleMode = (int)UnthrottleMode::CONTINUOUS;
g_Config.bMemStickInserted = true;
g_Config.iGlobalVolume = VOLUME_MAX - 1;
g_Config.iAltSpeedVolume = -1;
g_Config.bEnableSound = true;
g_Config.iCwCheatRefreshRate = 60;
g_Config.iMemStickSizeGB = 16;
g_Config.iFirmwareVersion = PSP_DEFAULT_FIRMWARE;
g_Config.iPSPModel = PSP_MODEL_SLIM;
LogManager::Init(&g_Config.bEnableLogging);
host = new LibretroHost;
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
}
if (environ_cb(RETRO_ENVIRONMENT_GET_INPUT_BITMASKS, NULL))
libretro_supports_bitmasks = true;
}
void retro_deinit(void)
{
LogManager::Shutdown();
delete printfLogger;
printfLogger = nullptr;
delete host;
host = nullptr;
libretro_supports_bitmasks = false;
}
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 = 480.0 / 272.0; // Not 16:9! But very, very close.
}
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");
for (;;)
{
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;
// Need to keep eating frames to allow the EmuThread to exit correctly.
while (ctx->ThreadFrame())
continue;
emuThread.join();
emuThread = std::thread();
ctx->ThreadEnd();
}
void EmuThreadPause()
{
if (emuThreadState != EmuThreadState::RUNNING)
return;
emuThreadState = EmuThreadState::PAUSE_REQUESTED;
ctx->ThreadFrame(); // Eat 1 frame
while (emuThreadState != EmuThreadState::PAUSED)
sleep_ms(1);
}
} // namespace Libretro
bool retro_load_game(const struct retro_game_info *game)
{
static std::string retro_base_dir;
static std::string retro_save_dir;
std::string error_string;
enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_XRGB8888;
const char *nickname = NULL;
const char *dir_ptr = NULL;
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_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
{ 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
{ 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
{ 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
{ 0 },
};
environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc);
if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt))
{
ERROR_LOG(SYSTEM, "XRGB8888 is not supported.\n");
return false;
}
if (environ_cb(RETRO_ENVIRONMENT_GET_USERNAME, &nickname) && nickname)
g_Config.sNickName = std::string(nickname);
if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir_ptr)
&& dir_ptr)
{
size_t last;
retro_base_dir = dir_ptr;
// Make sure that we don't have any lingering slashes, etc, as they break Windows.
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
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)
{
unsigned i;
int16_t ret = 0;
// 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();
if (libretro_supports_bitmasks)
ret = input_state_cb(0, RETRO_DEVICE_JOYPAD,
0, RETRO_DEVICE_ID_JOYPAD_MASK);
else
{
for (i = RETRO_DEVICE_ID_JOYPAD_B; i <= RETRO_DEVICE_ID_JOYPAD_R; i++)
if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, i))
ret |= (1 << i);
}
for (i = 0; i < sizeof(map) / sizeof(*map); i++)
{
bool pressed = ret & (1 << map[i].retro);
if (pressed)
{
__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, CTRL_STICK_LEFT);
__CtrlSetAnalogY(input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y) / -32768.0f, CTRL_STICK_LEFT);
__CtrlSetAnalogX(input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X) / 32768.0f, CTRL_STICK_RIGHT);
__CtrlSetAnalogY(input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y) / -32768.0f, CTRL_STICK_RIGHT);
}
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::PAUSED ||
emuThreadState == EmuThreadState::PAUSE_REQUESTED)
{
ctx->SwapBuffers();
return;
}
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) { return false; }
namespace SaveState
{
struct SaveStart
{
void DoState(PointerWrap &p);
};
} // namespace SaveState
size_t retro_serialize_size(void)
{
SaveState::SaveStart state;
// TODO: Libretro API extension to use the savestate queue
if (useEmuThread)
EmuThreadPause();
return (CChunkFileReader::MeasurePtr(state) + 0x800000)
& ~0x7FFFFF; // We don't unpause intentionally
}
bool retro_serialize(void *data, size_t size)
{
bool retVal;
SaveState::SaveStart state;
// TODO: Libretro API extension to use the savestate queue
if (useEmuThread)
EmuThreadPause(); // Does nothing if already paused
assert(CChunkFileReader::MeasurePtr(state) <= size);
retVal = CChunkFileReader::SavePtr((u8 *)data, state)
== CChunkFileReader::ERROR_NONE;
if (useEmuThread)
{
EmuThreadStart();
sleep_ms(4);
}
return retVal;
}
bool retro_unserialize(const void *data, size_t size)
{
bool retVal;
SaveState::SaveStart state;
// TODO: Libretro API extension to use the savestate queue
if (useEmuThread)
EmuThreadPause(); // Does nothing if already paused
std::string errorString;
retVal = CChunkFileReader::LoadPtr((u8 *)data, state, &errorString)
== CChunkFileReader::ERROR_NONE;
if (useEmuThread)
{
EmuThreadStart();
sleep_ms(4);
}
return retVal;
}
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) { }
int System_GetPropertyInt(SystemProperty prop)
{
switch (prop)
{
case SYSPROP_AUDIO_SAMPLE_RATE:
return SAMPLERATE;
#if PPSSPP_PLATFORM(ANDROID)
case SYSPROP_SYSTEMVERSION: {
char sdk[PROP_VALUE_MAX] = {0};
if (__system_property_get("ro.build.version.sdk", sdk) != 0) {
return atoi(sdk);
}
return -1;
}
#endif
default:
break;
}
return -1;
}
float System_GetPropertyFloat(SystemProperty prop)
{
switch (prop)
{
case SYSPROP_DISPLAY_REFRESH_RATE:
return 60.f;
case SYSPROP_DISPLAY_SAFE_INSET_LEFT:
case SYSPROP_DISPLAY_SAFE_INSET_RIGHT:
case SYSPROP_DISPLAY_SAFE_INSET_TOP:
case SYSPROP_DISPLAY_SAFE_INSET_BOTTOM:
return 0.0f;
default:
break;
}
return -1;
}
std::string System_GetProperty(SystemProperty prop) { return ""; }
std::vector<std::string> System_GetPropertyStringVec(SystemProperty prop) { return std::vector<std::string>(); }
void System_SendMessage(const char *command, const char *parameter) {}
void NativeUpdate() {}
void NativeRender(GraphicsContext *graphicsContext) {}
void NativeResized() {}
#if PPSSPP_PLATFORM(ANDROID) || PPSSPP_PLATFORM(IOS)
std::vector<std::string> __cameraGetDeviceList() { return std::vector<std::string>(); }
bool audioRecording_Available() { return false; }
bool audioRecording_State() { return false; }
void System_InputBoxGetString(const std::string &title, const std::string &defaultValue, std::function<void(bool, const std::string &)> cb) { cb(false, ""); }
#endif
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