SystemInfo_win.cpp

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Author : Stuart Morgan
Date : 2019-08-14 12:25:12
Hash : 9d737966
Message : Standardize copyright notices to project style For all "ANGLE Project" copyrights, standardize to the format specified by the style guide. Changes: - "Copyright (c)" and "Copyright(c)" changed to just "Copyright". - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1"). - Fixed a small number of files that had no copyright date using the initial commit year from the version control history. - Fixed one instance of copyright being "The ANGLE Project" rather than "The ANGLE Project Authors" These changes are applied both to the copyright of source file, and where applicable to copyright statements that are generated by templates. BUG=angleproject:3811 Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

src/gpu_info_util/SystemInfo_win.cpp

//
// Copyright 2013 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//

// SystemInfo_win.cpp: implementation of the Windows-specific parts of SystemInfo.h

#include "gpu_info_util/SystemInfo_internal.h"

#include "common/debug.h"
#include "common/string_utils.h"

// Windows.h needs to be included first
#include <windows.h>

#include <d3d10.h>
#include <dxgi.h>

#include <array>
#include <sstream>

namespace angle
{

namespace
{

bool GetDevicesFromDXGI(std::vector<GPUDeviceInfo> *devices)
{
    IDXGIFactory *factory;
    if (!SUCCEEDED(CreateDXGIFactory(__uuidof(IDXGIFactory), reinterpret_cast<void **>(&factory))))
    {
        return false;
    }

    UINT i                = 0;
    IDXGIAdapter *adapter = nullptr;
    while (factory->EnumAdapters(i++, &adapter) != DXGI_ERROR_NOT_FOUND)
    {
        DXGI_ADAPTER_DESC desc;
        adapter->GetDesc(&desc);

        LARGE_INTEGER umdVersion;
        if (adapter->CheckInterfaceSupport(__uuidof(ID3D10Device), &umdVersion) ==
            DXGI_ERROR_UNSUPPORTED)
        {
            adapter->Release();
            continue;
        }

        // The UMD driver version here is the same as in the registry except for the last number.
        uint64_t intVersion = umdVersion.QuadPart;
        std::ostringstream o;

        const uint64_t kMask = 0xFF;
        o << ((intVersion >> 48) & kMask) << ".";
        o << ((intVersion >> 32) & kMask) << ".";
        o << ((intVersion >> 16) & kMask) << ".";
        o << (intVersion & kMask);

        GPUDeviceInfo device;
        device.vendorId      = desc.VendorId;
        device.deviceId      = desc.DeviceId;
        device.driverVersion = o.str();

        devices->push_back(device);

        adapter->Release();
    }

    factory->Release();

    return (i > 0);
}

}  // anonymous namespace

bool GetSystemInfo(SystemInfo *info)
{
    if (!GetDevicesFromDXGI(&info->gpus))
    {
        return false;
    }

    if (info->gpus.size() == 0)
    {
        return false;
    }

    // Call FindActiveGPU to populate activeGPUIndex, isOptimus, and isAMDSwitchable.
    FindActiveGPU(info);

    // Override activeGPUIndex. The first index returned by EnumAdapters is the active GPU. We
    // can override the heuristic to find the active GPU
    info->activeGPUIndex = 0;

    // Override isOptimus. nvd3d9wrap.dll is loaded into all processes when Optimus is enabled.
    HMODULE nvd3d9wrap = GetModuleHandleW(L"nvd3d9wrap.dll");
    info->isOptimus    = nvd3d9wrap != nullptr;

    return true;
}

}  // namespace angle

kc3-lang/angle/src/gpu_info_util/SystemInfo_win.cpp

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kc3-lang/angle /src/gpu_info_util/SystemInfo_win.cpp