michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "WebGLContext.h"
michael@0: #include "GLContext.h"
michael@0: #include "WebGLQuery.h"
michael@0: #include "mozilla/dom/WebGL2RenderingContextBinding.h"
michael@0: #include "nsContentUtils.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: 
michael@0: JSObject*
michael@0: WebGLQuery::WrapObject(JSContext *cx) {
michael@0:     return dom::WebGLQueryBinding::Wrap(cx, this);
michael@0: }
michael@0: 
michael@0: WebGLQuery::WebGLQuery(WebGLContext* context)
michael@0:     : WebGLContextBoundObject(context)
michael@0:     , mGLName(0)
michael@0:     , mType(0)
michael@0: {
michael@0:     SetIsDOMBinding();
michael@0:     mContext->mQueries.insertBack(this);
michael@0: 
michael@0:     mContext->MakeContextCurrent();
michael@0:     mContext->gl->fGenQueries(1, &mGLName);
michael@0: }
michael@0: 
michael@0: void WebGLQuery::Delete() {
michael@0:     mContext->MakeContextCurrent();
michael@0:     mContext->gl->fDeleteQueries(1, &mGLName);
michael@0:     LinkedListElement<WebGLQuery>::removeFrom(mContext->mQueries);
michael@0: }
michael@0: 
michael@0: bool WebGLQuery::IsActive() const
michael@0: {
michael@0:     WebGLRefPtr<WebGLQuery>* targetSlot = mContext->GetQueryTargetSlot(mType, "WebGLQuery::IsActive()");
michael@0: 
michael@0:     MOZ_ASSERT(targetSlot, "unknown query object's type");
michael@0: 
michael@0:     return targetSlot && *targetSlot == this;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(WebGLQuery)
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebGLQuery, AddRef)
michael@0: NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebGLQuery, Release)