mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2024-11-14 21:37:52 -07:00
GeckoCode: Cleanup
The active codes vector cannot safely be used outside the mutex, move the lock out into RunCodeHandler. s_code_handler_installed was also racing against SetActiveCodes since it's being written both inside and outside the lock. General cleanup. Add s_ prefixes, use constexpr, remove C casts.
This commit is contained in:
EmptyChaos
parent
cf8ac5c09c
commit
e91c0222b4
@ -2,6 +2,8 @@
|
||||
// Licensed under GPLv2+
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#include <algorithm>
|
||||
#include <iterator>
|
||||
#include <mutex>
|
||||
#include <vector>
|
||||
|
||||
@ -16,128 +18,118 @@
|
||||
|
||||
namespace Gecko
|
||||
{
|
||||
static const u32 INSTALLER_BASE_ADDRESS = 0x80001800;
|
||||
static const u32 INSTALLER_END_ADDRESS = 0x80003000;
|
||||
static constexpr u32 INSTALLER_BASE_ADDRESS = 0x80001800;
|
||||
static constexpr u32 INSTALLER_END_ADDRESS = 0x80003000;
|
||||
static constexpr u32 CODE_SIZE = 8;
|
||||
static constexpr u32 MAGIC_GAMEID = 0xD01F1BAD;
|
||||
|
||||
// return true if a code exists
|
||||
bool GeckoCode::Exist(u32 address, u32 data) const
|
||||
{
|
||||
for (const GeckoCode::Code& code : codes)
|
||||
{
|
||||
if (code.address == address && code.data == data)
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
return std::find_if(codes.begin(), codes.end(), [&](const Code& code) {
|
||||
return code.address == address && code.data == data;
|
||||
}) != codes.end();
|
||||
}
|
||||
|
||||
// return true if the code is identical
|
||||
bool GeckoCode::Compare(const GeckoCode& compare) const
|
||||
{
|
||||
if (codes.size() != compare.codes.size())
|
||||
return false;
|
||||
|
||||
unsigned int exist = 0;
|
||||
|
||||
for (const GeckoCode::Code& code : codes)
|
||||
{
|
||||
if (compare.Exist(code.address, code.data))
|
||||
exist++;
|
||||
return codes.size() == compare.codes.size() &&
|
||||
std::equal(codes.begin(), codes.end(), compare.codes.begin(),
|
||||
[](const Code& a, const Code& b) {
|
||||
return a.address == b.address && a.data == b.data;
|
||||
});
|
||||
}
|
||||
|
||||
return exist == codes.size();
|
||||
}
|
||||
|
||||
static bool code_handler_installed = false;
|
||||
static bool s_code_handler_installed = false;
|
||||
// the currently active codes
|
||||
static std::vector<GeckoCode> active_codes;
|
||||
static std::mutex active_codes_lock;
|
||||
static std::vector<GeckoCode> s_active_codes;
|
||||
static std::mutex s_active_codes_lock;
|
||||
|
||||
void SetActiveCodes(const std::vector<GeckoCode>& gcodes)
|
||||
{
|
||||
std::lock_guard<std::mutex> lk(active_codes_lock);
|
||||
std::lock_guard<std::mutex> lk(s_active_codes_lock);
|
||||
|
||||
active_codes.clear();
|
||||
s_active_codes.clear();
|
||||
s_active_codes.reserve(gcodes.size());
|
||||
std::copy_if(gcodes.begin(), gcodes.end(), std::back_inserter(s_active_codes),
|
||||
[](const GeckoCode& code) { return code.enabled; });
|
||||
s_active_codes.shrink_to_fit();
|
||||
|
||||
// add enabled codes
|
||||
for (const GeckoCode& gecko_code : gcodes)
|
||||
{
|
||||
if (gecko_code.enabled)
|
||||
{
|
||||
// TODO: apply modifiers
|
||||
// TODO: don't need description or creator string, just takin up memory
|
||||
active_codes.push_back(gecko_code);
|
||||
}
|
||||
s_code_handler_installed = false;
|
||||
}
|
||||
|
||||
code_handler_installed = false;
|
||||
}
|
||||
|
||||
static bool InstallCodeHandler()
|
||||
// Requires s_active_codes_lock
|
||||
// NOTE: Refer to "codehandleronly.s" from Gecko OS.
|
||||
static bool InstallCodeHandlerLocked()
|
||||
{
|
||||
std::string data;
|
||||
std::string _rCodeHandlerFilename = File::GetSysDirectory() + GECKO_CODE_HANDLER;
|
||||
if (!File::ReadFileToString(_rCodeHandlerFilename, data))
|
||||
if (!File::ReadFileToString(File::GetSysDirectory() + GECKO_CODE_HANDLER, data))
|
||||
{
|
||||
WARN_LOG(ACTIONREPLAY, "Could not enable cheats because codehandler.bin was missing.");
|
||||
ERROR_LOG(ACTIONREPLAY, "Could not enable cheats because " GECKO_CODE_HANDLER " was missing.");
|
||||
return false;
|
||||
}
|
||||
|
||||
u8 mmioAddr = 0xCC;
|
||||
if (data.size() > INSTALLER_END_ADDRESS - INSTALLER_BASE_ADDRESS - CODE_SIZE)
|
||||
{
|
||||
ERROR_LOG(ACTIONREPLAY, GECKO_CODE_HANDLER " is too big. The file may be corrupt.");
|
||||
return false;
|
||||
}
|
||||
|
||||
u8 mmio_addr = 0xCC;
|
||||
if (SConfig::GetInstance().bWii)
|
||||
{
|
||||
mmioAddr = 0xCD;
|
||||
mmio_addr = 0xCD;
|
||||
}
|
||||
|
||||
// Install code handler
|
||||
for (size_t i = 0, e = data.length(); i < e; ++i)
|
||||
PowerPC::HostWrite_U8(data[i], (u32)(INSTALLER_BASE_ADDRESS + i));
|
||||
for (u32 i = 0; i < data.size(); ++i)
|
||||
PowerPC::HostWrite_U8(data[i], INSTALLER_BASE_ADDRESS + i);
|
||||
|
||||
// Patch the code handler to the system starting up
|
||||
// Patch the code handler to the current system type (Gamecube/Wii)
|
||||
for (unsigned int h = 0; h < data.length(); h += 4)
|
||||
{
|
||||
// Patch MMIO address
|
||||
if (PowerPC::HostRead_U32(INSTALLER_BASE_ADDRESS + h) == (0x3f000000u | ((mmioAddr ^ 1) << 8)))
|
||||
if (PowerPC::HostRead_U32(INSTALLER_BASE_ADDRESS + h) == (0x3f000000u | ((mmio_addr ^ 1) << 8)))
|
||||
{
|
||||
NOTICE_LOG(ACTIONREPLAY, "Patching MMIO access at %08x", INSTALLER_BASE_ADDRESS + h);
|
||||
PowerPC::HostWrite_U32(0x3f000000u | mmioAddr << 8, INSTALLER_BASE_ADDRESS + h);
|
||||
PowerPC::HostWrite_U32(0x3f000000u | mmio_addr << 8, INSTALLER_BASE_ADDRESS + h);
|
||||
}
|
||||
}
|
||||
|
||||
u32 codelist_base_address = INSTALLER_BASE_ADDRESS + (u32)data.length() - 8;
|
||||
u32 codelist_end_address = INSTALLER_END_ADDRESS;
|
||||
const u32 codelist_base_address =
|
||||
INSTALLER_BASE_ADDRESS + static_cast<u32>(data.size()) - CODE_SIZE;
|
||||
const u32 codelist_end_address = INSTALLER_END_ADDRESS;
|
||||
|
||||
// Write a magic value to 'gameid' (codehandleronly does not actually read this).
|
||||
PowerPC::HostWrite_U32(0xd01f1bad, INSTALLER_BASE_ADDRESS);
|
||||
PowerPC::HostWrite_U32(MAGIC_GAMEID, INSTALLER_BASE_ADDRESS);
|
||||
|
||||
// Create GCT in memory
|
||||
PowerPC::HostWrite_U32(0x00d0c0de, codelist_base_address);
|
||||
PowerPC::HostWrite_U32(0x00d0c0de, codelist_base_address + 4);
|
||||
|
||||
std::lock_guard<std::mutex> lk(active_codes_lock);
|
||||
|
||||
int i = 0;
|
||||
|
||||
for (const GeckoCode& active_code : active_codes)
|
||||
for (const GeckoCode& active_code : s_active_codes)
|
||||
{
|
||||
if (active_code.enabled)
|
||||
{
|
||||
for (const GeckoCode::Code& code : active_code.codes)
|
||||
{
|
||||
// Make sure we have enough memory to hold the code list
|
||||
if ((codelist_base_address + 24 + i) < codelist_end_address)
|
||||
if ((codelist_base_address + CODE_SIZE * 3 + i) < codelist_end_address)
|
||||
{
|
||||
PowerPC::HostWrite_U32(code.address, codelist_base_address + 8 + i);
|
||||
PowerPC::HostWrite_U32(code.data, codelist_base_address + 12 + i);
|
||||
i += 8;
|
||||
PowerPC::HostWrite_U32(code.address, codelist_base_address + CODE_SIZE + i);
|
||||
PowerPC::HostWrite_U32(code.data, codelist_base_address + CODE_SIZE + 4 + i);
|
||||
i += CODE_SIZE;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
PowerPC::HostWrite_U32(0xff000000, codelist_base_address + 8 + i);
|
||||
PowerPC::HostWrite_U32(0x00000000, codelist_base_address + 12 + i);
|
||||
// Stop code. Tells the handler that this is the end of the list.
|
||||
PowerPC::HostWrite_U32(0xF0000000, codelist_base_address + CODE_SIZE + i);
|
||||
PowerPC::HostWrite_U32(0x00000000, codelist_base_address + CODE_SIZE + 4 + i);
|
||||
|
||||
// Turn on codes
|
||||
PowerPC::HostWrite_U8(1, INSTALLER_BASE_ADDRESS + 7);
|
||||
@ -147,24 +139,24 @@ static bool InstallCodeHandler()
|
||||
{
|
||||
PowerPC::ppcState.iCache.Invalidate(INSTALLER_BASE_ADDRESS + j);
|
||||
}
|
||||
for (unsigned int k = codelist_base_address; k < codelist_end_address; k += 32)
|
||||
{
|
||||
PowerPC::ppcState.iCache.Invalidate(k);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
void RunCodeHandler()
|
||||
{
|
||||
if (!SConfig::GetInstance().bEnableCheats || active_codes.empty())
|
||||
if (!SConfig::GetInstance().bEnableCheats)
|
||||
return;
|
||||
|
||||
if (!code_handler_installed || PowerPC::HostRead_U32(INSTALLER_BASE_ADDRESS) - 0xd01f1bad > 5)
|
||||
std::lock_guard<std::mutex> codes_lock(s_active_codes_lock);
|
||||
if (s_active_codes.empty())
|
||||
return;
|
||||
|
||||
if (!s_code_handler_installed || PowerPC::HostRead_U32(INSTALLER_BASE_ADDRESS) - MAGIC_GAMEID > 5)
|
||||
{
|
||||
code_handler_installed = InstallCodeHandler();
|
||||
s_code_handler_installed = InstallCodeHandlerLocked();
|
||||
|
||||
// A warning was already issued for the install failing
|
||||
if (!code_handler_installed)
|
||||
if (!s_code_handler_installed)
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
@ -34,7 +34,6 @@ public:
|
||||
};
|
||||
|
||||
void SetActiveCodes(const std::vector<GeckoCode>& gcodes);
|
||||
bool RunActiveCodes();
|
||||
void RunCodeHandler();
|
||||
|
||||
} // namespace Gecko
|
||||
|
||||
Loading…
Reference in New Issue
Block a user