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libretro: Cheat support

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This commit is contained in:
Connor McLaughlin
2020-09-25 21:16:33 +10:00
parent 1e6815634a
commit 40037d6e90
6 changed files with 90 additions and 39 deletions
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94
src/core/cheats.cpp
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@ -196,49 +196,55 @@ bool CheatList::LoadFromLibretroFile(const char* filename)
CheatCode cc;
cc.description = *desc;
cc.enabled = StringUtil::FromChars<bool>(*enable).value_or(false);
const char* current_ptr = code->c_str();
while (current_ptr)
{
char* end_ptr;
CheatCode::Instruction inst;
inst.first = static_cast<u32>(std::strtoul(current_ptr, &end_ptr, 16));
current_ptr = end_ptr;
if (end_ptr)
{
if (*end_ptr != ' ')
{
Log_WarningPrintf("Malformed code '%s'", code->c_str());
break;
}
end_ptr++;
inst.second = static_cast<u32>(std::strtoul(current_ptr, &end_ptr, 16));
current_ptr = end_ptr;
if (end_ptr)
{
if (*end_ptr != '+')
{
Log_WarningPrintf("Malformed code '%s'", code->c_str());
break;
}
end_ptr++;
current_ptr = end_ptr;
}
cc.instructions.push_back(inst);
}
}
m_codes.push_back(std::move(cc));
if (ParseLibretroCheat(&cc, code->c_str()))
m_codes.push_back(std::move(cc));
}
Log_InfoPrintf("Loaded %zu cheats from '%s' (libretro format)", m_codes.size(), filename);
return !m_codes.empty();
}
bool CheatList::ParseLibretroCheat(CheatCode* cc, const char* line)
{
const char* current_ptr = line;
while (current_ptr)
{
char* end_ptr;
CheatCode::Instruction inst;
inst.first = static_cast<u32>(std::strtoul(current_ptr, &end_ptr, 16));
current_ptr = end_ptr;
if (end_ptr)
{
if (*end_ptr != ' ')
{
Log_WarningPrintf("Malformed code '%s'", line);
break;
}
end_ptr++;
inst.second = static_cast<u32>(std::strtoul(current_ptr, &end_ptr, 16));
if (end_ptr && *end_ptr == '\0')
end_ptr = nullptr;
if (end_ptr)
{
if (*end_ptr != '+')
{
Log_WarningPrintf("Malformed code '%s'", line);
break;
}
end_ptr++;
}
current_ptr = end_ptr;
cc->instructions.push_back(inst);
}
}
return !cc->instructions.empty();
}
void CheatList::Apply()
{
for (const CheatCode& code : m_codes)
@ -253,6 +259,20 @@ void CheatList::AddCode(CheatCode cc)
m_codes.push_back(std::move(cc));
}
void CheatList::SetCode(u32 index, CheatCode cc)
{
if (index > m_codes.size())
return;
if (index == m_codes.size())
{
m_codes.push_back(std::move(cc));
return;
}
m_codes[index] = std::move(cc);
}
void CheatList::RemoveCode(u32 i)
{
m_codes.erase(m_codes.begin() + i);