Core/PSPLoaders.cpp

   1 // Copyright (C) 2012 PPSSPP Project
   2
   3 // This program is free software: you can redistribute it and/or modify
   4 // it under the terms of the GNU General Public License as published by
   5 // the Free Software Foundation, version 2.0 or later versions.
   6
   7 // This program is distributed in the hope that it will be useful,
   8 // but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10 // GNU General Public License 2.0 for more details.
  11
  12 // A copy of the GPL 2.0 should have been included with the program.
  13 // If not, see http://www.gnu.org/licenses/
  14
  15 // Official git repository and contact information can be found at
  16 // https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
  17
  18 #ifdef __SYMBIAN32__
  19 #include <sys/param.h>
  20 #endif
  21
  22 #include "file/file_util.h"
  23
  24 #include "Common/StringUtils.h"
  25
  26 #include "Core/ELF/ElfReader.h"
  27 #include "Core/ELF/ParamSFO.h"
  28
  29 #include "FileSystems/BlockDevices.h"
  30 #include "FileSystems/DirectoryFileSystem.h"
  31 #include "FileSystems/ISOFileSystem.h"
  32 #include "FileSystems/MetaFileSystem.h"
  33 #include "FileSystems/VirtualDiscFileSystem.h"
  34
  35 #include "Core/Loaders.h"
  36 #include "Core/MemMap.h"
  37 #include "Core/HDRemaster.h"
  38
  39 #include "Core/MIPS/MIPS.h"
  40 #include "Core/MIPS/MIPSAnalyst.h"
  41 #include "Core/MIPS/MIPSCodeUtils.h"
  42
  43 #include "Host.h"
  44
  45 #include "Core/Config.h"
  46 #include "Core/System.h"
  47 #include "Core/PSPLoaders.h"
  48 #include "Core/HLE/HLE.h"
  49 #include "Core/HLE/sceKernel.h"
  50 #include "Core/HLE/sceKernelThread.h"
  51 #include "Core/HLE/sceKernelModule.h"
  52 #include "Core/HLE/sceKernelMemory.h"
  53
  54 // We gather the game info before actually loading/booting the ISO
  55 // to determine if the emulator should enable extra memory and
  56 // double-sized texture coordinates.
  57 void InitMemoryForGameISO(FileLoader *fileLoader) {
  58         IFileSystem* umd2;
  59
  60         if (!fileLoader->Exists()) {
  61                 return;
  62         }
  63
  64         bool actualIso = false;
  65         if (fileLoader->IsDirectory())
  66         {
  67                 umd2 = new VirtualDiscFileSystem(&pspFileSystem, fileLoader->Path());
  68         }
  69         else
  70         {
  71                 auto bd = constructBlockDevice(fileLoader);
  72                 // Can't init anything without a block device...
  73                 if (!bd)
  74                         return;
  75
  76 #ifdef _M_X64
  77                 if (g_Config.bCacheFullIsoInRam) {
  78                         // The constructor destroys the original block device object after reading it.
  79                         bd = new RAMBlockDevice(bd);
  80                 }
  81 #endif
  82
  83                 umd2 = new ISOFileSystem(&pspFileSystem, bd);
  84                 actualIso = true;
  85         }
  86
  87         // Parse PARAM.SFO
  88
  89         //pspFileSystem.Mount("host0:",umd2);
  90
  91         IFileSystem *entireIso = 0;
  92         if (actualIso) {
  93                 entireIso = new ISOBlockSystem(static_cast<ISOFileSystem *>(umd2));
  94         } else {
  95                 entireIso = umd2;
  96         }
  97
  98         pspFileSystem.Mount("umd0:", entireIso);
  99         pspFileSystem.Mount("umd1:", entireIso);
 100         pspFileSystem.Mount("disc0:", umd2);
 101         pspFileSystem.Mount("umd:", entireIso);
 102
 103         std::string gameID;
 104
 105         std::string sfoPath("disc0:/PSP_GAME/PARAM.SFO");
 106         PSPFileInfo fileInfo = pspFileSystem.GetFileInfo(sfoPath.c_str());
 107
 108         if (fileInfo.exists)
 109         {
 110                 std::vector<u8> paramsfo;
 111                 pspFileSystem.ReadEntireFile(sfoPath, paramsfo);
 112                 if (g_paramSFO.ReadSFO(paramsfo))
 113                 {
 114                         gameID = g_paramSFO.GetValueString("DISC_ID");
 115
 116                         for (size_t i = 0; i < ARRAY_SIZE(g_HDRemasters); i++) {
 117                                 if(g_HDRemasters[i].gameID == gameID) {
 118                                         g_RemasterMode = true;
 119                                         Memory::g_MemorySize = g_HDRemasters[i].MemorySize;
 120                                         if(g_HDRemasters[i].DoubleTextureCoordinates)
 121                                                 g_DoubleTextureCoordinates = true;
 122                                         break;
 123                                 }
 124                         }
 125                         DEBUG_LOG(LOADER, "HDRemaster mode is %s", g_RemasterMode? "true": "false");
 126                 }
 127         }
 128 }
 129
 130
 131 // Chinese translators like to rename EBOOT.BIN and replace it with some kind of stub
 132 // that probably loads a plugin and then launches the actual game. These stubs don't work in PPSSPP.
 133 // No idea why they are doing this, but it works to just bypass it. They could stop
 134 // inventing new filenames though...
 135 static const char *altBootNames[] = {
 136         "disc0:/PSP_GAME/SYSDIR/EBOOT.OLD",
 137         "disc0:/PSP_GAME/SYSDIR/EBOOT.DAT",
 138         "disc0:/PSP_GAME/SYSDIR/EBOOT.BI",
 139         "disc0:/PSP_GAME/SYSDIR/EBOOT.LLD",
 140         //"disc0:/PSP_GAME/SYSDIR/OLD_EBOOT.BIN", //Utawareru Mono Chinese version
 141         "disc0:/PSP_GAME/SYSDIR/EBOOT.123",
 142         "disc0:/PSP_GAME/SYSDIR/EBOOT_LRC_CH.BIN",
 143         "disc0:/PSP_GAME/SYSDIR/BOOT0.OLD",
 144         "disc0:/PSP_GAME/SYSDIR/BOOT1.OLD",
 145         "disc0:/PSP_GAME/SYSDIR/BINOT.BIN",
 146         "disc0:/PSP_GAME/SYSDIR/EBOOT.FRY",
 147         "disc0:/PSP_GAME/SYSDIR/EBOOT.Z.Y",
 148         "disc0:/PSP_GAME/SYSDIR/EBOOT.LEI",
 149         "disc0:/PSP_GAME/SYSDIR/EBOOT.DNR",
 150         "disc0:/PSP_GAME/SYSDIR/DBZ2.BIN",
 151         "disc0:/PSP_GAME/SYSDIR/ss.RAW",
 152 };
 153
 154 bool Load_PSP_ISO(FileLoader *fileLoader, std::string *error_string)
 155 {
 156         // Mounting stuff relocated to InitMemoryForGameISO due to HD Remaster restructuring of code.
 157
 158         std::string sfoPath("disc0:/PSP_GAME/PARAM.SFO");
 159         PSPFileInfo fileInfo = pspFileSystem.GetFileInfo(sfoPath.c_str());
 160         if (fileInfo.exists)
 161         {
 162                 std::vector<u8> paramsfo;
 163                 pspFileSystem.ReadEntireFile(sfoPath, paramsfo);
 164                 if (g_paramSFO.ReadSFO(paramsfo))
 165                 {
 166                         char title[1024];
 167                         sprintf(title, "%s : %s", g_paramSFO.GetValueString("DISC_ID").c_str(), g_paramSFO.GetValueString("TITLE").c_str());
 168                         INFO_LOG(LOADER, "%s", title);
 169                         host->SetWindowTitle(title);
 170                 }
 171         }
 172
 173
 174         std::string bootpath("disc0:/PSP_GAME/SYSDIR/EBOOT.BIN");
 175
 176         // Bypass Chinese translation patches, see comment above.
 177         for (size_t i = 0; i < ARRAY_SIZE(altBootNames); i++) {
 178                 if (pspFileSystem.GetFileInfo(altBootNames[i]).exists) {
 179                         bootpath = altBootNames[i];
 180                 }
 181         }
 182
 183         // Bypass another more dangerous one where the file is in USRDIR - this could collide with files in some game.
 184         std::string id = g_paramSFO.GetValueString("DISC_ID");
 185         if (id == "NPJH50624" && pspFileSystem.GetFileInfo("disc0:/PSP_GAME/USRDIR/PAKFILE2.BIN").exists) {
 186                 bootpath = "disc0:/PSP_GAME/USRDIR/PAKFILE2.BIN";
 187         }
 188         if (id == "NPJH00100" && pspFileSystem.GetFileInfo("disc0:/PSP_GAME/USRDIR/DATA/GIM/GBL").exists) {
 189                 bootpath = "disc0:/PSP_GAME/USRDIR/DATA/GIM/GBL";
 190         }
 191
 192         bool hasEncrypted = false;
 193         u32 fd;
 194         if ((fd = pspFileSystem.OpenFile(bootpath, FILEACCESS_READ)) != 0)
 195         {
 196                 u8 head[4];
 197                 pspFileSystem.ReadFile(fd, head, 4);
 198                 if (memcmp(head, "~PSP", 4) == 0 || memcmp(head, "\x7F""ELF", 4) == 0) {
 199                         hasEncrypted = true;
 200                 }
 201                 pspFileSystem.CloseFile(fd);
 202         }
 203         if (!hasEncrypted)
 204         {
 205                 // try unencrypted BOOT.BIN
 206                 bootpath = "disc0:/PSP_GAME/SYSDIR/BOOT.BIN";
 207         }
 208         //in case we didn't go through EmuScreen::boot
 209         g_Config.loadGameConfig(id);
 210         INFO_LOG(LOADER,"Loading %s...", bootpath.c_str());
 211         return __KernelLoadExec(bootpath.c_str(), 0, error_string);
 212 }
 213
 214 #if defined(_WIN32) && defined(__MINGW32__)
 215 #include "realpath.c"
 216 #endif
 217
 218 static std::string NormalizePath(const std::string &path)
 219 {
 220 #if defined(_WIN32) && !defined(__MINGW32__)
 221         char buf[512] = {0};
 222         if (GetFullPathNameA(path.c_str(), sizeof(buf) - 1, buf, NULL) == 0)
 223                 return "";
 224 #else
 225         char buf[PATH_MAX + 1];
 226         if (realpath(path.c_str(), buf) == NULL)
 227                 return "";
 228 #endif
 229         return buf;
 230 }
 231
 232 bool Load_PSP_ELF_PBP(FileLoader *fileLoader, std::string *error_string)
 233 {
 234         // This is really just for headless, might need tweaking later.
 235         if (PSP_CoreParameter().mountIsoLoader != nullptr)
 236         {
 237                 auto bd = constructBlockDevice(PSP_CoreParameter().mountIsoLoader);
 238                 if (bd != NULL) {
 239                         ISOFileSystem *umd2 = new ISOFileSystem(&pspFileSystem, bd);
 240
 241                         pspFileSystem.Mount("umd1:", umd2);
 242                         pspFileSystem.Mount("disc0:", umd2);
 243                         pspFileSystem.Mount("umd:", umd2);
 244                 }
 245         }
 246
 247         std::string full_path = fileLoader->Path();
 248         std::string path, file, extension;
 249         SplitPath(ReplaceAll(full_path, "\\", "/"), &path, &file, &extension);
 250 #ifdef _WIN32
 251         path = ReplaceAll(path, "/", "\\");
 252 #endif
 253
 254         if (!PSP_CoreParameter().mountRoot.empty())
 255         {
 256                 // We don't want to worry about .. and cwd and such.
 257                 const std::string rootNorm = NormalizePath(PSP_CoreParameter().mountRoot + "/");
 258                 const std::string pathNorm = NormalizePath(path + "/");
 259
 260                 // If root is not a subpath of path, we can't boot the game.
 261                 if (!startsWith(pathNorm, rootNorm))
 262                 {
 263                         *error_string = "Cannot boot ELF located outside mountRoot.";
 264                         return false;
 265                 }
 266
 267                 const std::string filepath = ReplaceAll(pathNorm.substr(rootNorm.size()), "\\", "/");
 268                 file = filepath + "/" + file;
 269                 path = rootNorm + "/";
 270                 pspFileSystem.SetStartingDirectory(filepath);
 271         }
 272
 273         DirectoryFileSystem *fs = new DirectoryFileSystem(&pspFileSystem, path);
 274         pspFileSystem.Mount("umd0:", fs);
 275
 276         std::string finalName = "umd0:/" + file + extension;
 277         return __KernelLoadExec(finalName.c_str(), 0, error_string);
 278 }