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// Copyright 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/scheduler/rate_limiter.h"
#include "base/bind.h"
#include "base/debug/trace_event.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/single_thread_task_runner.h"
#include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
namespace cc {
scoped_refptr<RateLimiter> RateLimiter::Create(
WebKit::WebGraphicsContext3D* context,
RateLimiterClient* client,
base::SingleThreadTaskRunner* task_runner) {
return make_scoped_refptr(new RateLimiter(context, client, task_runner));
}
RateLimiter::RateLimiter(WebKit::WebGraphicsContext3D* context,
RateLimiterClient* client,
base::SingleThreadTaskRunner* task_runner)
: context_(context),
active_(false),
client_(client),
task_runner_(task_runner) {
DCHECK(context);
}
RateLimiter::~RateLimiter() {}
void RateLimiter::Start() {
if (active_)
return;
TRACE_EVENT0("cc", "RateLimiter::Start");
active_ = true;
task_runner_->PostTask(FROM_HERE,
base::Bind(&RateLimiter::RateLimitContext, this));
}
void RateLimiter::Stop() {
TRACE_EVENT0("cc", "RateLimiter::Stop");
client_ = NULL;
}
void RateLimiter::RateLimitContext() {
if (!client_)
return;
TRACE_EVENT0("cc", "RateLimiter::RateLimitContext");
active_ = false;
client_->RateLimit();
context_->rateLimitOffscreenContextCHROMIUM();
}
} // namespace cc
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