ppsspp/Core/PSPLoaders.cpp
Peter Tissen be3389fdef added optional per-game settings
call button 'game settings' only when modifying game-only settings
make the user confirm deleting settings
2014-12-16 00:14:11 +01:00

275 lines
8.1 KiB
C++

// Copyright (C) 2012 PPSSPP Project
// This program 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, version 2.0 or later versions.
// This program 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#ifdef __SYMBIAN32__
#include <sys/param.h>
#endif
#include "file/file_util.h"
#include "Common/StringUtils.h"
#include "Core/ELF/ElfReader.h"
#include "Core/ELF/ParamSFO.h"
#include "FileSystems/BlockDevices.h"
#include "FileSystems/DirectoryFileSystem.h"
#include "FileSystems/ISOFileSystem.h"
#include "FileSystems/MetaFileSystem.h"
#include "FileSystems/VirtualDiscFileSystem.h"
#include "Core/Loaders.h"
#include "Core/MemMap.h"
#include "Core/HDRemaster.h"
#include "Core/MIPS/MIPS.h"
#include "Core/MIPS/MIPSAnalyst.h"
#include "Core/MIPS/MIPSCodeUtils.h"
#include "Host.h"
#include "Core/Config.h"
#include "Core/System.h"
#include "Core/PSPLoaders.h"
#include "Core/HLE/HLE.h"
#include "Core/HLE/sceKernel.h"
#include "Core/HLE/sceKernelThread.h"
#include "Core/HLE/sceKernelModule.h"
#include "Core/HLE/sceKernelMemory.h"
// We gather the game info before actually loading/booting the ISO
// to determine if the emulator should enable extra memory and
// double-sized texture coordinates.
void InitMemoryForGameISO(FileLoader *fileLoader) {
IFileSystem* umd2;
if (!fileLoader->Exists()) {
return;
}
bool actualIso = false;
if (fileLoader->IsDirectory())
{
umd2 = new VirtualDiscFileSystem(&pspFileSystem, fileLoader->Path());
}
else
{
auto bd = constructBlockDevice(fileLoader);
// Can't init anything without a block device...
if (!bd)
return;
#ifdef _M_X64
if (g_Config.bCacheFullIsoInRam) {
// The constructor destroys the original block device object after reading it.
bd = new RAMBlockDevice(bd);
}
#endif
umd2 = new ISOFileSystem(&pspFileSystem, bd);
actualIso = true;
}
// Parse PARAM.SFO
//pspFileSystem.Mount("host0:",umd2);
IFileSystem *entireIso = 0;
if (actualIso) {
entireIso = new ISOBlockSystem(static_cast<ISOFileSystem *>(umd2));
} else {
entireIso = umd2;
}
pspFileSystem.Mount("umd0:", entireIso);
pspFileSystem.Mount("umd1:", entireIso);
pspFileSystem.Mount("disc0:", umd2);
pspFileSystem.Mount("umd:", entireIso);
std::string gameID;
std::string sfoPath("disc0:/PSP_GAME/PARAM.SFO");
PSPFileInfo fileInfo = pspFileSystem.GetFileInfo(sfoPath.c_str());
if (fileInfo.exists)
{
std::vector<u8> paramsfo;
pspFileSystem.ReadEntireFile(sfoPath, paramsfo);
if (g_paramSFO.ReadSFO(paramsfo))
{
gameID = g_paramSFO.GetValueString("DISC_ID");
for (size_t i = 0; i < ARRAY_SIZE(g_HDRemasters); i++) {
if(g_HDRemasters[i].gameID == gameID) {
g_RemasterMode = true;
Memory::g_MemorySize = g_HDRemasters[i].MemorySize;
if(g_HDRemasters[i].DoubleTextureCoordinates)
g_DoubleTextureCoordinates = true;
break;
}
}
DEBUG_LOG(LOADER, "HDRemaster mode is %s", g_RemasterMode? "true": "false");
}
}
}
// Chinese translators like to rename EBOOT.BIN and replace it with some kind of stub
// that probably loads a plugin and then launches the actual game. These stubs don't work in PPSSPP.
// No idea why they are doing this, but it works to just bypass it. They could stop
// inventing new filenames though...
static const char *altBootNames[] = {
"disc0:/PSP_GAME/SYSDIR/EBOOT.OLD",
"disc0:/PSP_GAME/SYSDIR/EBOOT.DAT",
"disc0:/PSP_GAME/SYSDIR/EBOOT.BI",
"disc0:/PSP_GAME/SYSDIR/EBOOT.LLD",
"disc0:/PSP_GAME/SYSDIR/OLD_EBOOT.BIN",
"disc0:/PSP_GAME/SYSDIR/EBOOT.123",
"disc0:/PSP_GAME/SYSDIR/EBOOT_LRC_CH.BIN",
"disc0:/PSP_GAME/SYSDIR/BOOT0.OLD",
"disc0:/PSP_GAME/SYSDIR/BOOT1.OLD",
"disc0:/PSP_GAME/SYSDIR/BINOT.BIN",
"disc0:/PSP_GAME/SYSDIR/EBOOT.FRY",
"disc0:/PSP_GAME/SYSDIR/EBOOT.Z.Y",
"disc0:/PSP_GAME/SYSDIR/EBOOT.LEI",
"disc0:/PSP_GAME/SYSDIR/EBOOT.DNR",
"disc0:/PSP_GAME/SYSDIR/DBZ2.BIN",
"disc0:/PSP_GAME/SYSDIR/ss.RAW",
};
bool Load_PSP_ISO(FileLoader *fileLoader, std::string *error_string)
{
// Mounting stuff relocated to InitMemoryForGameISO due to HD Remaster restructuring of code.
std::string sfoPath("disc0:/PSP_GAME/PARAM.SFO");
PSPFileInfo fileInfo = pspFileSystem.GetFileInfo(sfoPath.c_str());
if (fileInfo.exists)
{
std::vector<u8> paramsfo;
pspFileSystem.ReadEntireFile(sfoPath, paramsfo);
if (g_paramSFO.ReadSFO(paramsfo))
{
char title[1024];
sprintf(title, "%s : %s", g_paramSFO.GetValueString("DISC_ID").c_str(), g_paramSFO.GetValueString("TITLE").c_str());
INFO_LOG(LOADER, "%s", title);
host->SetWindowTitle(title);
}
}
std::string bootpath("disc0:/PSP_GAME/SYSDIR/EBOOT.BIN");
// Bypass Chinese translation patches, see comment above.
for (size_t i = 0; i < ARRAY_SIZE(altBootNames); i++) {
if (pspFileSystem.GetFileInfo(altBootNames[i]).exists) {
bootpath = altBootNames[i];
}
}
// Bypass another more dangerous one where the file is in USRDIR - this could collide with files in some game.
std::string id = g_paramSFO.GetValueString("DISC_ID");
if (id == "NPJH50624" && pspFileSystem.GetFileInfo("disc0:/PSP_GAME/USRDIR/PAKFILE2.BIN").exists) {
bootpath = "disc0:/PSP_GAME/USRDIR/PAKFILE2.BIN";
}
if (id == "NPJH00100" && pspFileSystem.GetFileInfo("disc0:/PSP_GAME/USRDIR/DATA/GIM/GBL").exists) {
bootpath = "disc0:/PSP_GAME/USRDIR/DATA/GIM/GBL";
}
bool hasEncrypted = false;
u32 fd;
if ((fd = pspFileSystem.OpenFile(bootpath, FILEACCESS_READ)) != 0)
{
u8 head[4];
pspFileSystem.ReadFile(fd, head, 4);
if (memcmp(head, "~PSP", 4) == 0 || memcmp(head, "\x7F""ELF", 4) == 0) {
hasEncrypted = true;
}
pspFileSystem.CloseFile(fd);
}
if (!hasEncrypted)
{
// try unencrypted BOOT.BIN
bootpath = "disc0:/PSP_GAME/SYSDIR/BOOT.BIN";
}
//in case we didn't go through EmuScreen::boot
g_Config.loadGameConfig(id);
INFO_LOG(LOADER,"Loading %s...", bootpath.c_str());
return __KernelLoadExec(bootpath.c_str(), 0, error_string);
}
static std::string NormalizePath(const std::string &path)
{
#ifdef _WIN32
char buf[512] = {0};
if (GetFullPathNameA(path.c_str(), sizeof(buf) - 1, buf, NULL) == 0)
return "";
#else
char buf[PATH_MAX + 1];
if (realpath(path.c_str(), buf) == NULL)
return "";
#endif
return buf;
}
bool Load_PSP_ELF_PBP(FileLoader *fileLoader, std::string *error_string)
{
// This is really just for headless, might need tweaking later.
if (PSP_CoreParameter().mountIsoLoader != nullptr)
{
auto bd = constructBlockDevice(PSP_CoreParameter().mountIsoLoader);
if (bd != NULL) {
ISOFileSystem *umd2 = new ISOFileSystem(&pspFileSystem, bd);
pspFileSystem.Mount("umd1:", umd2);
pspFileSystem.Mount("disc0:", umd2);
pspFileSystem.Mount("umd:", umd2);
}
}
std::string full_path = fileLoader->Path();
std::string path, file, extension;
SplitPath(ReplaceAll(full_path, "\\", "/"), &path, &file, &extension);
#ifdef _WIN32
path = ReplaceAll(path, "/", "\\");
#endif
if (!PSP_CoreParameter().mountRoot.empty())
{
// We don't want to worry about .. and cwd and such.
const std::string rootNorm = NormalizePath(PSP_CoreParameter().mountRoot + "/");
const std::string pathNorm = NormalizePath(path + "/");
// If root is not a subpath of path, we can't boot the game.
if (!startsWith(pathNorm, rootNorm))
{
*error_string = "Cannot boot ELF located outside mountRoot.";
return false;
}
const std::string filepath = ReplaceAll(pathNorm.substr(rootNorm.size()), "\\", "/");
file = filepath + "/" + file;
path = rootNorm + "/";
pspFileSystem.SetStartingDirectory(filepath);
}
DirectoryFileSystem *fs = new DirectoryFileSystem(&pspFileSystem, path);
pspFileSystem.Mount("umd0:", fs);
std::string finalName = "umd0:/" + file + extension;
return __KernelLoadExec(finalName.c_str(), 0, error_string);
}