author Sylvestre Ledru <>
Thu, 17 Aug 2017 11:13:01 +0200
changeset 648192 c236dfe7dc98c387219d7cb45d0693560db708fd
parent 447875 d7a7e352abec80fbe76fb1f9bf235e2272c1e917
permissions -rw-r--r--
indent all (with js specific coding style) MozReview-Commit-ID: LU1md2wyB8

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at */

#ifndef WEBGL_QUERY_H_
#define WEBGL_QUERY_H_

#include "mozilla/LinkedList.h"
#include "nsWrapperCache.h"

#include "WebGLObjectModel.h"
#include "nsThreadUtils.h"

namespace mozilla {

class WebGLQuery final
  : public nsWrapperCache
  , public WebGLRefCountedObject<WebGLQuery>
  , public LinkedListElement<WebGLQuery>
  friend class AvailableRunnable;
  friend class WebGLRefCountedObject<WebGLQuery>;

  const GLuint mGLName;

  GLenum mTarget;
  WebGLRefPtr<WebGLQuery>* mActiveSlot;

  bool mCanBeAvailable; // Track whether the event loop has spun

  GLenum Target() const { return mTarget; }
  bool IsActive() const { return bool(mActiveSlot); }



  explicit WebGLQuery(WebGLContext* webgl);

  ~WebGLQuery() { DeleteOnce(); };

  // WebGLRefCountedObject
  void Delete();

  WebGLContext* GetParentObject() const { return mContext; }
  virtual JSObject* WrapObject(JSContext* cx,
                               JS::Handle<JSObject*> givenProto) override;


  void BeginQuery(GLenum target, WebGLRefPtr<WebGLQuery>& slot);
  void DeleteQuery();
  void EndQuery();
  void GetQueryParameter(GLenum pname, JS::MutableHandleValue retval) const;
  bool IsQuery() const;
  void QueryCounter(const char* funcName, GLenum target);

} // namespace mozilla

#endif // WEBGL_QUERY_H_