59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
#include "match.h"
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#include "main.h"
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#include "native/pchooks.h"
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#include "engine.h"
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#include "util.h"
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namespace Engine
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{
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/** Artikash 6/7/2019
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* PPSSPP JIT code has pointers, but they are all added to an offset before being used.
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Find that offset so that hook searching works properly.
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To find the offset, find a page of mapped memory with size 0x1f00000, read and write permissions, take its address and subtract 0x8000000.
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The above is useful for emulating PSP hardware, so unlikely to change between versions.
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*/
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bool FindPPSSPP()
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{
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bool found = false;
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SYSTEM_INFO systemInfo;
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GetNativeSystemInfo(&systemInfo);
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for (BYTE* probe = NULL; probe < systemInfo.lpMaximumApplicationAddress;)
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{
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MEMORY_BASIC_INFORMATION info;
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if (!VirtualQuery(probe, &info, sizeof(info)))
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{
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probe += systemInfo.dwPageSize;
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}
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else
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{
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if (info.RegionSize == 0x1f00000 && info.Protect == PAGE_READWRITE && info.Type == MEM_MAPPED)
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{
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found = true;
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ConsoleOutput("Textractor: PPSSPP memory found: searching for hooks should yield working hook codes");
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memcpy(spDefault.pattern, Array<BYTE>{ 0x79, 0x10, 0x41, 0xc7 }, spDefault.length = 4);
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spDefault.offset = 0;
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spDefault.minAddress = 0;
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spDefault.maxAddress = -1ULL;
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spDefault.padding = (uintptr_t)probe - 0x8000000;
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spDefault.hookPostProcesser = [](HookParam& hp) { hp.type |= NO_CONTEXT; };
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}
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probe += info.RegionSize;
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}
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}
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return found;
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}
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bool UnsafeDetermineEngineType()
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{
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if (Util::CheckFile(L"PPSSPP*.exe") && FindPPSSPP()) return true;
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for (std::wstring DXVersion : { L"d3dx9", L"d3dx10" })
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if (HMODULE module = GetModuleHandleW(DXVersion.c_str())) PcHooks::hookD3DXFunctions(module);
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else for (int i = 0; i < 50; ++i)
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if (HMODULE module = GetModuleHandleW((DXVersion + L"_" + std::to_wstring(i)).c_str())) PcHooks::hookD3DXFunctions(module);
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PcHooks::hookGDIFunctions();
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PcHooks::hookGDIPlusFunctions();
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return false;
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}
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} |