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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Communicator.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corp.
 * Portions created by the Initial Developer are Copyright (C) 2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"

/* NOTE: this interface is completely undesigned, not stable and likely to change */

[scriptable, uuid(a67c77af-2952-4028-93ab-e7bc3b43cf81)]
interface nsIGfxInfo : nsISupports
{
  /*
   * These are win32-specific
   */
  readonly attribute boolean D2DEnabled;
  readonly attribute boolean DWriteEnabled;
  readonly attribute boolean AzureEnabled;
  readonly attribute DOMString DWriteVersion;
  readonly attribute DOMString cleartypeParameters;

  // XXX: Switch to a list of devices, rather than explicitly numbering them. 

  /**
   * The name of the display adapter.
   */
  readonly attribute DOMString adapterDescription;
  readonly attribute DOMString adapterDescription2;

  readonly attribute DOMString adapterDriver;
  readonly attribute DOMString adapterDriver2;
  
  /* These types are inspired by DXGI_ADAPTER_DESC */
  readonly attribute DOMString adapterVendorID;
  readonly attribute DOMString adapterVendorID2;
  
  readonly attribute DOMString adapterDeviceID;
  readonly attribute DOMString adapterDeviceID2;

  /**
   * The amount of RAM in MB in the display adapter.
   */
  readonly attribute DOMString adapterRAM;
  readonly attribute DOMString adapterRAM2;
  
  readonly attribute DOMString adapterDriverVersion;
  readonly attribute DOMString adapterDriverVersion2;
  
  readonly attribute DOMString adapterDriverDate;
  readonly attribute DOMString adapterDriverDate2;

  readonly attribute boolean isGPU2Active;

  void getFailures(
               [optional] out unsigned long failureCount,
               [retval, array, size_is(failureCount)] out string failures);

  [noscript, notxpcom] void logFailure(in ACString failure);
  /*
   * A set of constants for features that we can ask this GfxInfo object
   * about via GetFeatureStatus
   */
  /* Don't assign 0 or -1 */
  /* Whether Direct2D is supported for content rendering. */
  const long FEATURE_DIRECT2D = 1;
  /* Whether Direct3D 9 is supported for layers. */
  const long FEATURE_DIRECT3D_9_LAYERS = 2;
  /* Whether Direct3D 10.0 is supported for layers. */
  const long FEATURE_DIRECT3D_10_LAYERS = 3;
  /* Whether Direct3D 10.1 is supported for layers. */
  const long FEATURE_DIRECT3D_10_1_LAYERS = 4;
  /* Whether OpenGL is supported for layers */
  const long FEATURE_OPENGL_LAYERS = 5;
  /* Whether WebGL is supported via OpenGL. */
  const long FEATURE_WEBGL_OPENGL = 6;
  /* Whether WebGL is supported via ANGLE (D3D9 -- does not check for the presence of ANGLE libs). */
  const long FEATURE_WEBGL_ANGLE = 7;
  /* Whether WebGL antialiasing is supported. */
  const long FEATURE_WEBGL_MSAA = 8;

  /*
   * A set of return values from GetFeatureStatus
   */

  /* We don't explicitly block or discourage the feature. Which means we'll try getting it from the
   * hardware, and see what happens. */
  const long FEATURE_NO_INFO = 1;
  /* We don't know the status of the feature yet. The analysis probably hasn't finished yet. */
  const long FEATURE_STATUS_UNKNOWN = 2;
  /* This feature is blocked on this driver version. Updating driver will typically unblock it. */
  const long FEATURE_BLOCKED_DRIVER_VERSION = 3;
  /* This feature is blocked on this device, regardless of driver version.
   * Typically means we hit too many driver crashes without a good reason to hope for them to
   * get fixed soon. */
  const long FEATURE_BLOCKED_DEVICE = 4;
  /* This feature is available and can be used, but is not suggested (e.g. shouldn't be used by default */
  const long FEATURE_DISCOURAGED = 5;
  /* This feature is blocked on this OS version. */
  const long FEATURE_BLOCKED_OS_VERSION = 6;

  /**
   * Ask about a feature, and return the status of that feature
   */
  long getFeatureStatus(in long aFeature);

  /*
   * Ask about a feature, return the minimum driver version required for it if its status is
   * FEATURE_BLOCKED_DRIVER_VERSION, otherwise return an empty string. 
   */
  DOMString getFeatureSuggestedDriverVersion(in long aFeature);

  /**
   * WebGL info; valid params are "full-renderer", "vendor", "renderer", "version",
   * "shading_language_version", "extensions".  These return info from
   * underlying GL impl that's used to implement WebGL.
   */
  DOMString getWebGLParameter(in DOMString aParam);

  // only useful on X11
  [noscript, notxpcom] void GetData();

  [implicit_jscontext]
  jsval getInfo();
};