gecko/dom/canvas/WebGLQuery.cpp

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/* -*- 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 "WebGLContext.h"
#include "GLContext.h"
#include "WebGLQuery.h"
#include "mozilla/dom/WebGL2RenderingContextBinding.h"
#include "nsContentUtils.h"
using namespace mozilla;
JSObject*
WebGLQuery::WrapObject(JSContext *cx) {
return dom::WebGLQueryBinding::Wrap(cx, this);
}
WebGLQuery::WebGLQuery(WebGLContext* context)
: WebGLContextBoundObject(context)
, mGLName(0)
, mType(0)
{
SetIsDOMBinding();
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
{
WebGLRefPtr<WebGLQuery>* targetSlot = mContext->GetQueryTargetSlot(mType, "WebGLQuery::IsActive()");
MOZ_ASSERT(targetSlot, "unknown query object's type");
return targetSlot && *targetSlot == this;
}
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(WebGLQuery)
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebGLQuery, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebGLQuery, Release)