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Added speed hack engine (way to make block take more cycles). Added example speed hack for Metroid Prime 2 PAL. (Speedhacking is only useful on games with really stupid idle loops, like the Metroids).

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@1271 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
hrydgard
2008-11-23 12:59:10 +00:00
parent e2345ba340
commit f87c709aa9
6 changed files with 84 additions and 29 deletions
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59
Source/Core/Core/Src/PatchEngine.cpp
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@@ -28,6 +28,7 @@
#include <string>
#include <vector>
#include <map>
#include "StringUtil.h"
#include "PatchEngine.h"
#include "IniFile.h"
@@ -41,10 +42,9 @@ namespace
std::vector<Patch> onLoad;
std::vector<Patch> onFrame;
std::map<u32, int> speedHacks;
} // namespace
void LoadPatchSection(const char *section, std::vector<Patch> &patches, IniFile &ini)
static void LoadPatchSection(const char *section, std::vector<Patch> &patches, IniFile &ini)
{
std::vector<std::string> keys;
ini.GetKeys(section, keys);
@@ -59,18 +59,54 @@ void LoadPatchSection(const char *section, std::vector<Patch> &patches, IniFile
std::string val(value);
std::vector<std::string> items;
SplitString(val, ":", items);
Patch p;
bool success = true;
success = success && TryParseUInt(std::string(key.c_str()), &p.address);
success = success && TryParseUInt(items[1], &p.value);
p.type = (PatchType)ChooseStringFrom(items[0].c_str(), PatchTypeStrings);
success = success && (p.type != (PatchType)-1);
if (success)
patches.push_back(p);
if (items.size() >= 2) {
Patch p;
bool success = true;
success = success && TryParseUInt(std::string(key.c_str()), &p.address);
success = success && TryParseUInt(items[1], &p.value);
p.type = (PatchType)ChooseStringFrom(items[0].c_str(), PatchTypeStrings);
success = success && (p.type != (PatchType)-1);
if (success)
patches.push_back(p);
}
}
}
}
static void LoadSpeedhacks(const char *section, std::map<u32, int> &hacks, IniFile &ini) {
std::vector<std::string> keys;
ini.GetKeys(section, keys);
for (std::vector<std::string>::const_iterator iter = keys.begin(); iter != keys.end(); ++iter)
{
std::string key = *iter;
std::string value;
ini.Get(section, key.c_str(), &value, "BOGUS");
if (value != "BOGUS")
{
u32 address;
u32 cycles;
bool success = true;
success = success && TryParseUInt(std::string(key.c_str()), &address);
success = success && TryParseUInt(value, &cycles);
if (success) {
speedHacks[address] = (int)cycles;
}
}
}
}
} // namespace
int PatchEngine_GetSpeedhackCycles(u32 addr)
{
std::map<u32, int>::const_iterator iter = speedHacks.find(addr);
if (iter == speedHacks.end())
return 0;
else
return iter->second;
}
void PatchEngine_LoadPatches(const char *gameID)
{
IniFile ini;
@@ -79,6 +115,7 @@ void PatchEngine_LoadPatches(const char *gameID)
LoadPatchSection("OnLoad", onLoad, ini);
LoadPatchSection("OnFrame", onFrame, ini);
LoadActionReplayCodes(ini, false);
LoadSpeedhacks("Speedhacks", speedHacks, ini);
}
}