samples/basic_sample_low_latency/DXSample.cpp - main - redgpu/xess

samples/basic_sample_low_latency/DXSample.cpp
172 строки6 KB
Intel XeSS
Updated to XeSS SDK 2.1.0
30 июл 2025, 22:47
30 июл 2025, 22:47c159ef4
//*********************************************************
//
// Copyright (c) Microsoft. All rights reserved.
// Copyright (c) 2023 Intel Corporation
// 
// This code is licensed under the MIT License (MIT).
// THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
// IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
// PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
//
//*********************************************************

#include "stdafx.h"
#include "DXSample.h"

using namespace Microsoft::WRL;

DXSample::DXSample(UINT width, UINT height, std::wstring name) :
    m_width(width),
    m_height(height),
    m_title(name),
    m_useWarpDevice(false),
    m_hardwareAdapterId(-1)
{
    WCHAR assetsPath[512];
    GetAssetsPath(assetsPath, _countof(assetsPath));
    m_assetsPath = assetsPath;

    m_aspectRatio = static_cast<float>(width) / static_cast<float>(height);
}

DXSample::~DXSample()
{
}

// Helper function for resolving the full path of assets.
std::wstring DXSample::GetAssetFullPath(LPCWSTR assetName)
{
    return m_assetsPath + assetName;
}

// Helper function for acquiring the first available hardware adapter that supports Direct3D 12.
// If no such adapter can be found, *ppAdapter will be set to nullptr.
_Use_decl_annotations_
void DXSample::GetHardwareAdapter(
    IDXGIFactory1* pFactory,
    IDXGIAdapter1** ppAdapter,
    bool requestHighPerformanceAdapter)
{
    *ppAdapter = nullptr;

    ComPtr<IDXGIAdapter1> adapter;

    ComPtr<IDXGIFactory6> factory6;
    if (SUCCEEDED(pFactory->QueryInterface(IID_PPV_ARGS(&factory6))))
    {
        for (
            UINT adapterIndex = 0;
            SUCCEEDED(factory6->EnumAdapterByGpuPreference(
                adapterIndex,
                requestHighPerformanceAdapter == true ? DXGI_GPU_PREFERENCE_HIGH_PERFORMANCE : DXGI_GPU_PREFERENCE_UNSPECIFIED,
                IID_PPV_ARGS(&adapter)));
                ++adapterIndex)
        {
            DXGI_ADAPTER_DESC1 desc;
            adapter->GetDesc1(&desc);

            if (desc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE)
            {
                // Don't select the Basic Render Driver adapter.
                // If you want a software adapter, pass in "/warp" on the command line.
                continue;
            }

            // Check to see whether the adapter supports Direct3D 12, but don't create the
            // actual device yet.
            if (SUCCEEDED(D3D12CreateDevice(adapter.Get(), D3D_FEATURE_LEVEL_11_0, _uuidof(ID3D12Device), nullptr)))
            {
                break;
            }
        }
    }

    if (adapter.Get() == nullptr)
    {
        for (UINT adapterIndex = 0; SUCCEEDED(pFactory->EnumAdapters1(adapterIndex, &adapter)); ++adapterIndex)
        {
            DXGI_ADAPTER_DESC1 desc;
            adapter->GetDesc1(&desc);

            if (desc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE)
            {
                // Don't select the Basic Render Driver adapter.
                // If you want a software adapter, pass in "/warp" on the command line.
                continue;
            }

            // Check to see whether the adapter supports Direct3D 12, but don't create the
            // actual device yet.
            if (SUCCEEDED(D3D12CreateDevice(adapter.Get(), D3D_FEATURE_LEVEL_11_0, _uuidof(ID3D12Device), nullptr)))
            {
                break;
            }
        }
    }

    *ppAdapter = adapter.Detach();
}

// Helper function for setting the window's title text.
void DXSample::SetCustomWindowText(LPCWSTR text)
{
    std::wstring windowText = m_title + L" - " + text;
    SetWindowText(Win32Application::GetHwnd(), windowText.c_str());
}

// Helper function for parsing any supplied command line args.
_Use_decl_annotations_
void DXSample::ParseCommandLineArgs(WCHAR* argv[], int argc)
{
    for (int i = 1; i < argc; ++i)
    {
        if (_wcsnicmp(argv[i], L"-warp", wcslen(argv[i])) == 0 ||
            _wcsnicmp(argv[i], L"/warp", wcslen(argv[i])) == 0)
        {
            m_useWarpDevice = true;
            m_title = m_title + L" (WARP)";
        }

        if ((_wcsnicmp(argv[i], L"-gpu_id", wcslen(argv[i])) == 0 ||
            _wcsnicmp(argv[i], L"/gpu_id", wcslen(argv[i])) == 0) && (i + 1 < argc))
        {
            m_hardwareAdapterId = _wtoi(argv[i + 1]);
            i++;
        }

        if (_wcsnicmp(argv[i], L"-async", wcslen(argv[i])) == 0 ||
            _wcsnicmp(argv[i], L"/async", wcslen(argv[i])) == 0)
        {
            m_useAsyncFlip = true;
        }

        if (_wcsnicmp(argv[i], L"-xell", wcslen(argv[i])) == 0 ||
            _wcsnicmp(argv[i], L"/xell", wcslen(argv[i])) == 0)
        {
#ifdef ENABLE_XELL
            m_latencyReductionEnabled = true;
#endif
        }

        if ((_wcsnicmp(argv[i], L"-frame_count", wcslen(argv[i])) == 0 ||
            _wcsnicmp(argv[i], L"/frame_count", wcslen(argv[i])) == 0) && (i + 1 < argc))
        {
            m_frame_count_limit = _wtoi(argv[i + 1]);
            i++;
        }

        if (_wcsnicmp(argv[i], L"-fps", wcslen(argv[i])) == 0 ||
            _wcsnicmp(argv[i], L"/fps", wcslen(argv[i])) == 0)
        {
            m_frameMS = 1000 / _wtof(argv[i + 1]);
            i++;
        }

        if (_wcsnicmp(argv[i], L"-fullscreen", wcslen(argv[i])) == 0 ||
            _wcsnicmp(argv[i], L"/fullscreen", wcslen(argv[i])) == 0)
        {
            m_fullScreen = true;
        }
    }
}