Hardware/Nvidia/NvidiaGroup.cs
author sl
Sun, 03 Feb 2013 18:01:50 +0100
changeset 391 ca4c0e7ae75d
parent 298 96263190189a
permissions -rw-r--r--
Converted project to VisualStudio 2012.
Adding SoundGraphDisplay and SensorFrontView classes.
They were respectively based on SystemTray and SensorNotifyIcon.
SoundGraphDisplay is now able to load iMONDisplay.dll providing it lives on your PATH.
Adding option to sensor context menu for adding it into FrontView.
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/*
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  This Source Code Form is subject to the terms of the Mozilla Public
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  License, v. 2.0. If a copy of the MPL was not distributed with this
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  file, You can obtain one at http://mozilla.org/MPL/2.0/.
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  Copyright (C) 2009-2011 Michael Möller <mmoeller@openhardwaremonitor.org>
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*/
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using System.Collections.Generic;
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using System.Globalization;
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using System.Text;
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namespace OpenHardwareMonitor.Hardware.Nvidia {
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  internal class NvidiaGroup : IGroup {
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    private readonly List<Hardware> hardware = new List<Hardware>();
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    private readonly StringBuilder report = new StringBuilder();
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    public NvidiaGroup(ISettings settings) {
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      if (!NVAPI.IsAvailable)
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        return;
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      report.AppendLine("NVAPI");
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      report.AppendLine();
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      string version;
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      if (NVAPI.NvAPI_GetInterfaceVersionString(out version) == NvStatus.OK) {
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        report.Append("Version: ");
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        report.AppendLine(version);
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      }
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      NvPhysicalGpuHandle[] handles = 
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        new NvPhysicalGpuHandle[NVAPI.MAX_PHYSICAL_GPUS];
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      int count;
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      if (NVAPI.NvAPI_EnumPhysicalGPUs == null) {
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        report.AppendLine("Error: NvAPI_EnumPhysicalGPUs not available");
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        report.AppendLine();
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        return;
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      } else {        
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        NvStatus status = NVAPI.NvAPI_EnumPhysicalGPUs(handles, out count);
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        if (status != NvStatus.OK) {
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          report.AppendLine("Status: " + status);
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          report.AppendLine();
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          return;
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        }
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      }
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      IDictionary<NvPhysicalGpuHandle, NvDisplayHandle> displayHandles =
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        new Dictionary<NvPhysicalGpuHandle, NvDisplayHandle>();
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      if (NVAPI.NvAPI_EnumNvidiaDisplayHandle != null &&
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        NVAPI.NvAPI_GetPhysicalGPUsFromDisplay != null) 
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      {
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        NvStatus status = NvStatus.OK;
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        int i = 0;
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        while (status == NvStatus.OK) {
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          NvDisplayHandle displayHandle = new NvDisplayHandle();
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          status = NVAPI.NvAPI_EnumNvidiaDisplayHandle(i, ref displayHandle);
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          i++;
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          if (status == NvStatus.OK) {
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            NvPhysicalGpuHandle[] handlesFromDisplay =
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              new NvPhysicalGpuHandle[NVAPI.MAX_PHYSICAL_GPUS];
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            uint countFromDisplay;
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            if (NVAPI.NvAPI_GetPhysicalGPUsFromDisplay(displayHandle,
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              handlesFromDisplay, out countFromDisplay) == NvStatus.OK) {
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              for (int j = 0; j < countFromDisplay; j++) {
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                if (!displayHandles.ContainsKey(handlesFromDisplay[j]))
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                  displayHandles.Add(handlesFromDisplay[j], displayHandle);
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              }
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            }
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          }
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        }
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      }
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      report.Append("Number of GPUs: ");
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      report.AppendLine(count.ToString(CultureInfo.InvariantCulture));
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      for (int i = 0; i < count; i++) {
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        NvDisplayHandle displayHandle;
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        displayHandles.TryGetValue(handles[i], out displayHandle);
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        hardware.Add(new NvidiaGPU(i, handles[i], displayHandle, settings));
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      }
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      report.AppendLine();
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    }
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    public IHardware[] Hardware {
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      get {
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        return hardware.ToArray();
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      }
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    }
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    public string GetReport() {
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      return report.ToString();
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    }
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    public void Close() {
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      foreach (Hardware gpu in hardware)
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        gpu.Close();      
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    }
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  }
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}