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force VolumeDirectory to align files to 32KB (only streaming audio files really need to be aligned...)

This commit is contained in:
Shawn Hoffman 2012-04-23 00:38:58 -07:00
parent 5ceef0c513
commit 26521aa66a
4 changed files with 25 additions and 17 deletions
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1
Source/Core/Common/Src/MathUtil.h
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@ -161,6 +161,7 @@ void LoadDefaultSSEState();
float MathFloatVectorSum(const std::vector<float>&);
#define ROUND_UP(x, a) (((x) + (a) - 1) & ~((a) - 1))
#define ROUND_DOWN(x, a) ((x) & ~((a) - 1))
// Tiny matrix/vector library.

3
Source/Core/Core/Src/Boot/Boot.cpp
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@ -19,6 +19,7 @@
#include "Common.h" // Common
#include "StringUtil.h"
#include "FileUtil.h"
#include "MathUtil.h"
#include "../HLE/HLE.h" // Core
#include "../PowerPC/PowerPC.h"
@ -68,7 +69,7 @@ void CBoot::Load_FST(bool _bIsWii)
u32 fstSize = VolumeHandler::Read32(0x0428) << shift;
u32 maxFstSize = VolumeHandler::Read32(0x042c) << shift;
u32 arenaHigh = 0x817FFFF4 - maxFstSize;
u32 arenaHigh = ROUND_DOWN(0x817FFFFF - maxFstSize, 0x20);
Memory::Write_U32(arenaHigh, 0x00000034);
// load FST

26
Source/Core/DiscIO/Src/VolumeDirectory.cpp
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@ -16,6 +16,7 @@
// http://code.google.com/p/dolphin-emu/
#include "Common.h"
#include "MathUtil.h"
#include "CommonPaths.h"
#include "VolumeDirectory.h"
#include "FileBlob.h"
@ -23,17 +24,6 @@
namespace DiscIO
{
static const u8 ENTRY_SIZE = 0x0c;
static const u8 FILE_ENTRY = 0;
static const u8 DIRECTORY_ENTRY = 1;
static const u64 DISKHEADER_ADDRESS = 0;
static const u64 DISKHEADERINFO_ADDRESS = 0x440;
static const u64 APPLOADER_ADDRESS = 0x2440;
static const u32 MAX_NAME_LENGTH = 0x3df;
// relocatable
static u64 FST_ADDRESS = 0x440;
static u64 DOL_ADDRESS = 0;
CVolumeDirectory::CVolumeDirectory(const std::string& _rDirectory, bool _bIsWii,
const std::string& _rApploader, const std::string& _rDOL)
: m_totalNameSize(0)
@ -44,6 +34,8 @@ CVolumeDirectory::CVolumeDirectory(const std::string& _rDirectory, bool _bIsWii,
, m_apploader(NULL)
, m_DOLSize(0)
, m_DOL(NULL)
, FST_ADDRESS(0)
, DOL_ADDRESS(0)
{
m_rootDirectory = ExtractDirectoryName(_rDirectory);
@ -321,7 +313,7 @@ bool CVolumeDirectory::SetApploader(const std::string& _rApploader)
copy(data.begin(), data.end(), m_apploader);
// 32byte aligned (plus 0x20 padding)
DOL_ADDRESS = (APPLOADER_ADDRESS + m_apploaderSize + 0x20 + 31) & ~31ULL;
DOL_ADDRESS = ROUND_UP(APPLOADER_ADDRESS + m_apploaderSize + 0x20, 0x20ull);
return true;
}
else
@ -347,7 +339,7 @@ void CVolumeDirectory::SetDOL(const std::string& _rDOL)
Write32((u32)(DOL_ADDRESS >> m_addressShift), 0x0420, m_diskHeader);
// 32byte aligned (plus 0x20 padding)
FST_ADDRESS = (DOL_ADDRESS + m_DOLSize + 0x20 + 31) & ~31ULL;
FST_ADDRESS = ROUND_UP(DOL_ADDRESS + m_DOLSize + 0x20, 0x20ull);
}
}
@ -367,8 +359,12 @@ void CVolumeDirectory::BuildFST()
m_fstSize = m_fstNameOffset + m_totalNameSize;
m_FSTData = new u8[(u32)m_fstSize];
// if FST hasn't been assigned (ie no apploader/dol setup), set to default
if (FST_ADDRESS == 0)
FST_ADDRESS = APPLOADER_ADDRESS + 0x2000;
// 4 byte aligned start of data on disk
m_dataStartAddress = (FST_ADDRESS + m_fstSize + 3) & ~3;
m_dataStartAddress = ROUND_UP(FST_ADDRESS + m_fstSize, 0x8000ull);
u64 curDataAddress = m_dataStartAddress;
u32 fstOffset = 0; // offset within FST data
@ -490,7 +486,7 @@ void CVolumeDirectory::WriteEntry(const File::FSTEntry& entry, u32& fstOffset, u
m_virtualDisk.insert(make_pair(dataOffset, entry.physicalName));
// 4 byte aligned
dataOffset = (dataOffset + entry.size + 3) & ~3ULL;
dataOffset = ROUND_UP(dataOffset + entry.size, 0x8000ull);
}
}

10
Source/Core/DiscIO/Src/VolumeDirectory.h
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@ -141,6 +141,16 @@ private:
u64 m_DOLSize;
u8* m_DOL;
static const u8 ENTRY_SIZE = 0x0c;
static const u8 FILE_ENTRY = 0;
static const u8 DIRECTORY_ENTRY = 1;
static const u64 DISKHEADER_ADDRESS = 0;
static const u64 DISKHEADERINFO_ADDRESS = 0x440;
static const u64 APPLOADER_ADDRESS = 0x2440;
static const u32 MAX_NAME_LENGTH = 0x3df;
u64 FST_ADDRESS;
u64 DOL_ADDRESS;
};
} // namespace