properly identify Wii-mode DOL files

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@1848 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/Core/Src/Boot/Boot_DOL.cpp

@@ -78,3 +78,19 @@ u32 CDolLoader::GetEntryPoint()
 {
 	return m_dolheader.entryPoint;
 }
+
+bool CDolLoader::IsDolWii(const char* filename)
+{
+	// try to open file
+	FILE* pStream = fopen(filename, "rb");
+	if (pStream)
+	{
+		fseek(pStream, 0xe0, SEEK_SET);
+		u32 entrypt = fgetc(pStream) << 24 | fgetc(pStream) << 16 |
+			fgetc(pStream) << 8 | fgetc(pStream);
+
+		fclose(pStream);
+		return entrypt >= 0x80004000;
+	}
+	return 0;
+}

Source/Core/Core/Src/Boot/Boot_DOL.h

@@ -26,6 +26,7 @@ public:
 	CDolLoader(const char* _szFilename);
 	u32 GetEntryPoint();
 	
+	static bool IsDolWii(const char* filename);
 private:
 	enum
 	{

Source/Core/Core/Src/CoreParameter.cpp

@@ -22,6 +22,7 @@
 #include "VolumeCreator.h" // DiscIO
 
 #include "Boot/Boot.h" // Core
+#include "Boot/Boot_DOL.h"
 #include "CoreParameter.h"
 #include "Core.h" // for bWii
 
@@ -114,13 +115,14 @@ bool SCoreStartupParameter::AutoSetup(EBootBios _BootBios)
             }
             else if (!strcasecmp(Extension.c_str(), ".elf"))
             {
-				bWii = CBoot::IsElfWii(m_strFilename.c_str());
+                bWii = CBoot::IsElfWii(m_strFilename.c_str());
                 Region = USA_DIR; 
                 m_BootType = BOOT_ELF;
                 bNTSC = true;
             }
             else if (!strcasecmp(Extension.c_str(), ".dol"))
             {
+                bWii = CDolLoader::IsDolWii(m_strFilename.c_str());
                 Region = USA_DIR; 
                 m_BootType = BOOT_DOL;
                 bNTSC = true;