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#include "stdafx.h"
#include "DX11Manager.h"
#include <Windows.h>
#pragma comment (lib, "D3D11.lib")
struct DDataIntern {
IDXGISwapChain * SwapChain;
ID3D11Device * Device;
ID3D11DeviceContext * DeviceContext;
};
static LRESULT CALLBACK WinProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case(WM_DESTROY):
PostQuitMessage(0);
return 0;
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
break;
}
}
static HRESULT InitD3D(struct DDataIntern * const data, HWND hWnd)
{
DXGI_SWAP_CHAIN_DESC SwapChainDesc;
ZeroMemory(&SwapChainDesc, sizeof(DXGI_SWAP_CHAIN_DESC));
SwapChainDesc.BufferCount = 1;
SwapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
SwapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
SwapChainDesc.OutputWindow = hWnd;
SwapChainDesc.SampleDesc.Count = 4;
SwapChainDesc.Windowed = true;
return D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_HARDWARE, NULL, NULL, NULL, NULL, D3D11_SDK_VERSION, &SwapChainDesc,
&data->SwapChain, &data->Device, NULL, &data->DeviceContext);
}
static void CleanD3D(struct DDataIntern * const data)
{
data->SwapChain->Release();
data->Device->Release();
data->DeviceContext->Release();
}
bool WINAPI GetDirectxData(struct DxData * const data)
{
HINSTANCE hInstance = (HINSTANCE)((LONG_PTR)GetWindowLongW(GetActiveWindow(), -6));
HWND hWnd;
WNDCLASSEX wc;
struct DDataIntern data_intern;
ZeroMemory(&data_intern, sizeof(data_intern));
ZeroMemory(&wc, sizeof(WNDCLASSEX));
wc.cbSize = sizeof(WNDCLASSEX);
wc.hbrBackground = (HBRUSH)COLOR_WINDOW;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hInstance = hInstance;
wc.lpfnWndProc = WinProc;
wc.lpszClassName = L"DxData";
wc.style = CS_VREDRAW | CS_HREDRAW;
RegisterClassEx(&wc);
RECT rect = { 0, 0, 600, 400 };
AdjustWindowRect(&rect, WS_OVERLAPPEDWINDOW, false);
hWnd = CreateWindowEx(NULL, L"DxData", L"DxData", WS_OVERLAPPEDWINDOW, 300, 300, rect.right - rect.left,
rect.bottom - rect.top, NULL, NULL, hInstance, NULL);
if (!hWnd) {
return false;
}
ShowWindow(hWnd, NULL);
data->CreateSwapChainReturn = InitD3D(&data_intern, hWnd);
{
MSG msg;
while (GetMessage(&msg, NULL, 0, 0) &&
PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
memcpy(data->buf, (*(UINT64 ***)data_intern.SwapChain)[8], sizeof data->buf);
HMODULE d3d11_base = LoadLibrary(L"d3d11.dll");
data->DeviceVTableOffset = *(UINT64 *)data_intern.Device;
data->DeviceContextVTableOffset = *(UINT64 *)data_intern.DeviceContext;
data->SwapChainVTableOffset = (*(UINT64 **)data_intern.SwapChain)[8] - (UINT64)d3d11_base;
CleanD3D(&data_intern);
CloseWindow(hWnd);
DestroyWindow(hWnd);
{
MSG msg;
while (GetMessage(&msg, NULL, 0, 0) &&
PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
FreeLibrary(d3d11_base);
return true;
}
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