// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.

#include <Windows.h>

#include <stdio.h>

#include <d3d9.h>

#include <wrl/client.h>

#pragma comment(lib,"user32.lib")
#pragma comment(lib,"d3d9.lib")

using Microsoft::WRL::ComPtr;

int main()
{
    ComPtr<IDirect3D9Ex> pDirect3D;
    if (FAILED(Direct3DCreate9Ex(D3D_SDK_VERSION, pDirect3D.GetAddressOf())))
    {
        printf("ERROR\n");
        return 1;
    }

    D3DPRESENT_PARAMETERS d3dpp = {};
    d3dpp.Windowed = TRUE;
    d3dpp.SwapEffect = D3DSWAPEFFECT_COPY;

    ComPtr<IDirect3DDevice9Ex> pDevice;
    if (FAILED(pDirect3D->CreateDeviceEx(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, GetDesktopWindow(),
        D3DCREATE_SOFTWARE_VERTEXPROCESSING,
        &d3dpp, nullptr, pDevice.GetAddressOf())))
    {
        printf("ERROR\n");
        return 1;
    }

    if (FAILED(pDevice->CreateQuery(D3DQUERYTYPE_VCACHE, NULL)))
    {
        printf("ERROR - VCACHE query not supported\n");
        return 1;
    }

    ComPtr<IDirect3DQuery9> pQuery;
    if (FAILED(pDevice->CreateQuery(D3DQUERYTYPE_VCACHE, pQuery.GetAddressOf())))
    {
        printf("ERROR\n");
        return 1;
    }

    pQuery->Issue(D3DISSUE_END);

    D3DDEVINFO_VCACHE vcache;
    while (S_FALSE == pQuery->GetData(&vcache, sizeof(vcache), D3DGETDATA_FLUSH))
        ;

    if (vcache.OptMethod == 1)
    {
        printf("vertexCache (size %lu, magic %lu)\n", vcache.CacheSize, vcache.MagicNumber);
    }
    else
    {
        printf("stripOrder\n");
    }

    return 0;
}