mirror of
https://github.com/libretro/ppsspp.git
synced 2024-11-28 19:00:23 +00:00
c4c581000f
This works around a bug in a Harry Potter game that happens on real hardware. Thanks to gdmk02 for a lot of testing. Unfortunately, it'll still fail with certain amounts of free space, but it does this on a real PSP also.
63 lines
1.3 KiB
C++
63 lines
1.3 KiB
C++
#include "Common/ChunkFile.h"
|
|
#include "Core/FileSystems/MetaFileSystem.h"
|
|
#include "Core/HW/MemoryStick.h"
|
|
#include "Core/System.h"
|
|
|
|
// MS and FatMS states.
|
|
static MemStickState memStickState;
|
|
static MemStickFatState memStickFatState;
|
|
static u64 memStickSize;
|
|
|
|
void MemoryStick_DoState(PointerWrap &p)
|
|
{
|
|
auto s = p.Section("MemoryStick", 1, 2);
|
|
if (!s)
|
|
return;
|
|
|
|
p.Do(memStickState);
|
|
p.Do(memStickFatState);
|
|
if (s >= 2)
|
|
p.Do(memStickSize);
|
|
else
|
|
memStickSize = 1ULL * 1024 * 1024 * 1024;
|
|
|
|
}
|
|
|
|
MemStickState MemoryStick_State()
|
|
{
|
|
return memStickState;
|
|
}
|
|
|
|
MemStickFatState MemoryStick_FatState()
|
|
{
|
|
return memStickFatState;
|
|
}
|
|
|
|
u64 MemoryStick_SectorSize()
|
|
{
|
|
return 32 * 1024; // 32KB
|
|
}
|
|
|
|
u64 MemoryStick_FreeSpace()
|
|
{
|
|
u64 freeSpace = pspFileSystem.FreeSpace("ms0:/");
|
|
if (freeSpace < memStickSize)
|
|
return freeSpace;
|
|
return memStickSize;
|
|
}
|
|
|
|
void MemoryStick_SetFatState(MemStickFatState state)
|
|
{
|
|
memStickFatState = state;
|
|
}
|
|
|
|
void MemoryStick_Init()
|
|
{
|
|
memStickState = PSP_MEMORYSTICK_STATE_DRIVER_READY;
|
|
memStickFatState = PSP_FAT_MEMORYSTICK_STATE_ASSIGNED;
|
|
// Harry Potter and the Goblet of Fire has a bug where it can't handle certain amounts
|
|
// of free space due to incorrect 32-bit math.
|
|
// We use 9GB here, which does not trigger the bug, as a cap for the max free space.
|
|
memStickSize = 9ULL * 1024 * 1024 * 1024; // 9GB
|
|
}
|