file detection and loader support

.reuse/dep5

@@ -9,5 +9,7 @@ Files: CMakeSettings.json
        .github/shadps4.desktop
        .github/shadps4.png
 	   .gitmodules
+	   src/images/shadps4.ico
+	   src/shadps4.rc
 Copyright: shadPS4 Emulator Project
 License: GPL-2.0-or-later

CMakeLists.txt

@@ -127,6 +127,7 @@ set(HOST_SOURCES src/Emulator/Host/controller.cpp
                  src/Emulator/Host/controller.h
 )
 
+# the above is shared in sdl and qt version (TODO share them all)
 set(COMMON src/common/types.h
            src/common/endian.h
            src/common/concepts.h
@@ -134,6 +135,10 @@ set(COMMON src/common/types.h
            src/common/io_file.h
 )
 
+set(CORE src/core/loader.cpp
+         src/core/loader.h
+)
+
 set(CRYPTO src/core/crypto/crypto.cpp
            src/core/crypto/crypto.h 
            src/core/crypto/keys.h
@@ -244,6 +249,7 @@ add_executable(shadps4
     src/core/tls.cpp
     src/core/tls.h
     ${COMMON}
+    ${CORE}
     ${CRYPTO}
     ${FILE_FORMAT}
 )
@@ -265,6 +271,10 @@ if (WIN32)
     add_definitions(-DNOMINMAX -DWIN32_LEAN_AND_MEAN)
 endif()
 
+if(WIN32)
+    target_sources(shadps4 PRIVATE src/shadps4.rc)
+endif()
+
 target_include_directories(shadps4 PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
 
 if(CMAKE_BUILD_TYPE STREQUAL "Debug")

src/core/loader.cpp

@@ -0,0 +1,24 @@
+// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/io_file.h"
+#include "common/types.h"
+#include "loader.h"
+
+FileTypes detectFileType(const std::string& filepath) {
+    if (filepath.size() == 0) // no file loaded
+    {
+        return FILETYPE_UNKNOWN;
+    }
+    Common::FS::IOFile file;
+    file.Open(filepath, Common::FS::FileAccessMode::Read);
+    file.Seek(0);
+    u32 magic;
+    file.ReadRaw<u8>(&magic, sizeof(magic));
+    file.Close();
+    switch (magic) {
+    case 0x544e437f: // PS4 PKG
+        return FILETYPE_PKG;
+    }
+    return FILETYPE_UNKNOWN;
+}

src/core/loader.h

@@ -0,0 +1,9 @@
+// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string>
+
+enum FileTypes { FILETYPE_UNKNOWN, FILETYPE_PKG };
+FileTypes detectFileType(const std::string& filepath);

src/shadps4.rc

@@ -0,0 +1 @@
+IDI_ICON1 ICON "images/shadps4.ico"