gecko-dev/dom/canvas/WebGLQuery.h

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1.7 KiB
C++

/* -*- 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 http://mozilla.org/MPL/2.0/. */
#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>
, public WebGLContextBoundObject
{
public:
explicit WebGLQuery(WebGLContext* webgl);
class AvailableRunnable final : public nsRunnable
{
public:
explicit AvailableRunnable(WebGLQuery* query) : mQuery(query) { }
NS_IMETHOD Run() override {
mQuery->mCanBeAvailable = true;
return NS_OK;
}
private:
const RefPtr<WebGLQuery> mQuery;
};
bool IsActive() const;
bool HasEverBeenActive() const {
return mType != 0;
}
// WebGLRefCountedObject
void Delete();
// nsWrapperCache
WebGLContext* GetParentObject() const {
return mContext;
}
// NS
virtual JSObject* WrapObject(JSContext* cx, JS::Handle<JSObject*> givenProto) override;
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLQuery)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLQuery)
// Track whether the event loop has spun
bool mCanBeAvailable;
private:
~WebGLQuery() {
DeleteOnce();
};
GLuint mGLName;
GLenum mType;
friend class WebGL2Context;
};
} // namespace mozilla
#endif // WEBGL_QUERY_H_