dom/canvas/WebGLQuery.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef WEBGLQUERY_H_
   7 #define WEBGLQUERY_H_
   8
   9 #include "WebGLObjectModel.h"
  10
  11 #include "nsWrapperCache.h"
  12
  13 #include "mozilla/LinkedList.h"
  14
  15 namespace mozilla {
  16
  17 class WebGLQuery MOZ_FINAL
  18     : public nsWrapperCache
  19     , public WebGLRefCountedObject<WebGLQuery>
  20     , public LinkedListElement<WebGLQuery>
  21     , public WebGLContextBoundObject
  22 {
  23 // -----------------------------------------------------------------------------
  24 // PUBLIC
  25 public:
  26
  27     // -------------------------------------------------------------------------
  28     // CONSTRUCTOR
  29
  30     WebGLQuery(WebGLContext *context);
  31
  32     // -------------------------------------------------------------------------
  33     // MEMBER FUNCTIONS
  34
  35     bool IsActive() const;
  36
  37     bool HasEverBeenActive()
  38     {
  39         return mType != 0;
  40     }
  41
  42
  43     // -------------------------------------------------------------------------
  44     // IMPLEMENT WebGLRefCountedObject and WebGLContextBoundObject
  45
  46     void Delete();
  47
  48     WebGLContext* GetParentObject() const
  49     {
  50         return Context();
  51     }
  52
  53
  54     // -------------------------------------------------------------------------
  55     // IMPLEMENT NS
  56     virtual JSObject* WrapObject(JSContext *cx) MOZ_OVERRIDE;
  57
  58     NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLQuery)
  59     NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLQuery)
  60
  61
  62 // -----------------------------------------------------------------------------
  63 // PRIVATE
  64 private:
  65     ~WebGLQuery() {
  66         DeleteOnce();
  67     };
  68
  69     // -------------------------------------------------------------------------
  70     // MEMBERS
  71     GLuint mGLName;
  72     GLenum mType;
  73
  74     // -------------------------------------------------------------------------
  75     // FRIENDSHIPS
  76     friend class WebGLContext;
  77 };
  78
  79 } // namespace mozilla
  80
  81 #endif