gecko-dev/dom/canvas/WebGLQuery.cpp

58 строки
1.4 KiB
C++

/* -*- Mode: C++; tab-width: 20; 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/. */
#include "WebGLQuery.h"
#include "GLContext.h"
#include "mozilla/dom/WebGL2RenderingContextBinding.h"
#include "nsContentUtils.h"
#include "WebGLContext.h"
namespace mozilla {
JSObject*
WebGLQuery::WrapObject(JSContext* cx, JS::Handle<JSObject*> givenProto)
{
return dom::WebGLQueryBinding::Wrap(cx, this, givenProto);
}
WebGLQuery::WebGLQuery(WebGLContext* webgl)
: WebGLContextBoundObject(webgl)
, mCanBeAvailable(false)
, mGLName(0)
, mType(0)
{
mContext->mQueries.insertBack(this);
mContext->MakeContextCurrent();
mContext->gl->fGenQueries(1, &mGLName);
}
void
WebGLQuery::Delete()
{
mContext->MakeContextCurrent();
mContext->gl->fDeleteQueries(1, &mGLName);
LinkedListElement<WebGLQuery>::removeFrom(mContext->mQueries);
}
bool
WebGLQuery::IsActive() const
{
if (!HasEverBeenActive())
return false;
WebGLRefPtr<WebGLQuery>& targetSlot = mContext->GetQuerySlotByTarget(mType);
return targetSlot.get() == this;
}
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(WebGLQuery)
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebGLQuery, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebGLQuery, Release)
} // namespace mozilla