98 lines
2.2 KiB
C++
98 lines
2.2 KiB
C++
#define _CRT_SECURE_NO_WARNINGS
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#include <stdio.h>
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#include <windows.h>
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#include <d3d9.h>
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#include "get-graphics-offsets.h"
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typedef HRESULT (WINAPI *d3d9createex_t)(UINT, IDirect3D9Ex**);
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struct d3d9_info {
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HMODULE module;
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HWND hwnd;
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IDirect3D9Ex *d3d9ex;
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IDirect3DDevice9Ex *device;
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IDirect3DSwapChain9 *swap;
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};
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static inline bool d3d9_init(d3d9_info &info)
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{
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d3d9createex_t create;
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HRESULT hr;
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info.hwnd = CreateWindowExA(0, DUMMY_WNDCLASS, "d3d9 get-offset window",
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WS_POPUP, 0, 0, 1, 1, nullptr, nullptr,
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GetModuleHandleA(nullptr), nullptr);
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if (!info.hwnd) {
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return false;
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}
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info.module = LoadLibraryA("d3d9.dll");
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if (!info.module) {
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return false;
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}
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create = (d3d9createex_t)GetProcAddress(info.module,
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"Direct3DCreate9Ex");
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if (!create) {
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return false;
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}
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hr = create(D3D_SDK_VERSION, &info.d3d9ex);
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if (FAILED(hr)) {
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return false;
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}
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D3DPRESENT_PARAMETERS pp = {};
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pp.Windowed = true;
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pp.SwapEffect = D3DSWAPEFFECT_FLIP;
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pp.BackBufferFormat = D3DFMT_A8R8G8B8;
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pp.BackBufferWidth = 2;
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pp.BackBufferHeight = 2;
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pp.BackBufferCount = 1;
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pp.hDeviceWindow = info.hwnd;
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pp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
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hr = info.d3d9ex->CreateDeviceEx(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
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info.hwnd,
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D3DCREATE_HARDWARE_VERTEXPROCESSING |
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D3DCREATE_NOWINDOWCHANGES, &pp, nullptr, &info.device);
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if (FAILED(hr)) {
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return false;
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}
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hr = info.device->GetSwapChain(0, &info.swap);
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if (FAILED(hr)) {
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return false;
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}
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return true;
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}
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static inline void d3d9_free(d3d9_info &info)
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{
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if (info.swap)
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info.swap->Release();
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if (info.device)
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info.device->Release();
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if (info.d3d9ex)
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info.d3d9ex->Release();
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if (info.hwnd)
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DestroyWindow(info.hwnd);
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}
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void get_d3d9_offsets(struct d3d9_offsets *offsets)
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{
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d3d9_info info = {};
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bool success = d3d9_init(info);
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if (success) {
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offsets->present = vtable_offset(info.module, info.device, 17);
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offsets->present_ex = vtable_offset(info.module, info.device,
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121);
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offsets->present_swap = vtable_offset(info.module, info.swap,
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3);
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}
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d3d9_free(info);
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}
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