From 5ad1aa8b6821a86527a1afa455516d2d8f2291cd Mon Sep 17 00:00:00 2001
From: Mathieu Vaillancourt <vaillancourtm@gmail.com>
Date: Mon, 21 Apr 2014 23:09:10 -0400
Subject: [PATCH] Add a quick way to load Launcher.dat files
---
src/core/loader.cpp | 54 +++++++++++++++++++++++++++++++++++++++++++++
src/core/loader.h | 11 ++++-----
2 files changed, 60 insertions(+), 5 deletions(-)
diff --git a/src/core/loader.cpp b/src/core/loader.cpp
index 8c6d54a68..7c1dfef61 100644
--- a/src/core/loader.cpp
+++ b/src/core/loader.cpp
@@ -11,6 +11,8 @@
#include "core/file_sys/directory_file_system.h"
#include "core/elf/elf_reader.h"
+#include "core/mem_map.h"
+
////////////////////////////////////////////////////////////////////////////////////////////////////
/// Loads an extracted CXI from a directory
@@ -66,6 +68,52 @@ bool Load_ELF(std::string &filename) {
return true;
}
+/// Loads a Launcher DAT file
+bool Load_DAT(std::string &filename) {
+ std::string full_path = filename;
+ std::string path, file, extension;
+ SplitPath(ReplaceAll(full_path, "\\", "/"), &path, &file, &extension);
+#if EMU_PLATFORM == PLATFORM_WINDOWS
+ path = ReplaceAll(path, "/", "\\");
+#endif
+ File::IOFile f(filename, "rb");
+
+ if (f.IsOpen()) {
+ u64 size = f.GetSize();
+ u8* buffer = new u8[size];
+
+ f.ReadBytes(buffer, size);
+
+ /**
+ * (mattvail) We shouldn't really support this type of file
+ * but for the sake of making it easier... we'll temporarily/hackishly
+ * allow it. No sense in making a proper reader for this.
+ */
+ u32 entrypoint = 0x080c3ee0; // write to same entrypoint as elf
+ u32 payload_offset = 0x6F4;
+
+ const u8 *src = &buffer[payload_offset];
+ u8 *dst = Memory::GetPointer(entrypoint);
+ u32 srcSize = size - payload_offset; //just load everything...
+ u32 *s = (u32*)src;
+ u32 *d = (u32*)dst;
+ for (int j = 0; j < (int)(srcSize + 3) / 4; j++)
+ {
+ *d++ = (*s++);
+ }
+
+ Core::g_app_core->SetPC(entrypoint);
+
+ delete[] buffer;
+ }
+ else {
+ return false;
+ }
+ f.Close();
+
+ return true;
+}
+
namespace Loader {
bool IsBootableDirectory() {
@@ -97,6 +145,9 @@ FileType IdentifyFile(std::string &filename) {
else if (!strcasecmp(extension.c_str(), ".elf")) {
return FILETYPE_CTR_ELF; // TODO(bunnei): Do some filetype checking :p
}
+ else if (!strcasecmp(extension.c_str(), ".dat")) {
+ return FILETYPE_LAUNCHER_DAT;
+ }
else if (!strcasecmp(extension.c_str(), ".zip")) {
return FILETYPE_ARCHIVE_ZIP;
}
@@ -127,6 +178,9 @@ bool LoadFile(std::string &filename, std::string *error_string) {
case FILETYPE_CTR_ELF:
return Load_ELF(filename);
+ case FILETYPE_LAUNCHER_DAT:
+ return Load_DAT(filename);
+
case FILETYPE_DIRECTORY_CXI:
return LoadDirectory_CXI(filename);
diff --git a/src/core/loader.h b/src/core/loader.h
index 3dd8c471d..df30f16c7 100644
--- a/src/core/loader.h
+++ b/src/core/loader.h
@@ -11,12 +11,13 @@
namespace Loader {
enum FileType {
- FILETYPE_ERROR,
+ FILETYPE_ERROR,
- FILETYPE_CTR_CCI,
- FILETYPE_CTR_CIA,
- FILETYPE_CTR_CXI,
- FILETYPE_CTR_ELF,
+ FILETYPE_CTR_CCI,
+ FILETYPE_CTR_CIA,
+ FILETYPE_CTR_CXI,
+ FILETYPE_CTR_ELF,
+ FILETYPE_LAUNCHER_DAT,
FILETYPE_DIRECTORY_CXI,