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// Copyright 2014 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/resources/raster_worker_pool_delegate.h"
namespace cc {
RasterWorkerPoolDelegate::RasterWorkerPoolDelegate(
RasterWorkerPoolClient* client,
base::SequencedTaskRunner* task_runner,
RasterWorkerPool** raster_worker_pools,
size_t num_raster_worker_pools)
: client_(client),
task_runner_(task_runner),
raster_worker_pools_(raster_worker_pools,
raster_worker_pools + num_raster_worker_pools),
has_scheduled_tasks_(num_raster_worker_pools, false),
did_finish_running_tasks_pending_count_(0u),
did_finish_running_tasks_required_for_activation_pending_count_(0u),
run_did_finish_running_tasks_pending_(false),
weak_ptr_factory_(this) {
DCHECK(client_);
for (RasterWorkerPoolVector::iterator it = raster_worker_pools_.begin();
it != raster_worker_pools_.end();
++it)
(*it)->SetClient(this);
}
RasterWorkerPoolDelegate::~RasterWorkerPoolDelegate() {}
// static
scoped_ptr<RasterWorkerPoolDelegate> RasterWorkerPoolDelegate::Create(
RasterWorkerPoolClient* client,
base::SequencedTaskRunner* task_runner,
RasterWorkerPool** raster_worker_pools,
size_t num_raster_worker_pools) {
return make_scoped_ptr(new RasterWorkerPoolDelegate(
client, task_runner, raster_worker_pools, num_raster_worker_pools));
}
void RasterWorkerPoolDelegate::Shutdown() {
for (RasterWorkerPoolVector::iterator it = raster_worker_pools_.begin();
it != raster_worker_pools_.end();
++it)
(*it)->Shutdown();
}
void RasterWorkerPoolDelegate::ScheduleTasks(RasterTaskQueue* raster_queue) {
size_t did_finish_running_tasks_pending_count = 0u;
for (size_t i = 0u; i < raster_worker_pools_.size(); ++i) {
// Empty queue doesn't have to be scheduled unless raster worker pool has
// some currently scheduled tasks.
if (raster_queue[i].items.empty() && !has_scheduled_tasks_[i])
continue;
has_scheduled_tasks_[i] = !raster_queue[i].items.empty();
raster_worker_pools_[i]->ScheduleTasks(&raster_queue[i]);
++did_finish_running_tasks_pending_count;
}
did_finish_running_tasks_pending_count_ =
did_finish_running_tasks_pending_count;
did_finish_running_tasks_required_for_activation_pending_count_ =
did_finish_running_tasks_pending_count;
// Need to schedule a call to RunDidFinishRunningTasks() when no
// DidFinishRunningTasks notifications are expected from raster worker pool
// instances.
if (!did_finish_running_tasks_pending_count)
ScheduleRunDidFinishRunningTasks();
}
void RasterWorkerPoolDelegate::CheckForCompletedTasks() {
for (RasterWorkerPoolVector::iterator it = raster_worker_pools_.begin();
it != raster_worker_pools_.end();
++it)
(*it)->CheckForCompletedTasks();
}
bool RasterWorkerPoolDelegate::ShouldForceTasksRequiredForActivationToComplete()
const {
return client_->ShouldForceTasksRequiredForActivationToComplete();
}
void RasterWorkerPoolDelegate::DidFinishRunningTasks() {
DCHECK_LT(0u, did_finish_running_tasks_pending_count_);
--did_finish_running_tasks_pending_count_;
RunDidFinishRunningTasks();
}
void RasterWorkerPoolDelegate::DidFinishRunningTasksRequiredForActivation() {
DCHECK_LT(0u,
did_finish_running_tasks_required_for_activation_pending_count_);
--did_finish_running_tasks_required_for_activation_pending_count_;
RunDidFinishRunningTasks();
}
void RasterWorkerPoolDelegate::ScheduleRunDidFinishRunningTasks() {
if (run_did_finish_running_tasks_pending_)
return;
task_runner_->PostTask(
FROM_HERE,
base::Bind(&RasterWorkerPoolDelegate::OnRunDidFinishRunningTasks,
weak_ptr_factory_.GetWeakPtr()));
run_did_finish_running_tasks_pending_ = true;
}
void RasterWorkerPoolDelegate::OnRunDidFinishRunningTasks() {
DCHECK(run_did_finish_running_tasks_pending_);
run_did_finish_running_tasks_pending_ = false;
RunDidFinishRunningTasks();
}
void RasterWorkerPoolDelegate::RunDidFinishRunningTasks() {
if (!did_finish_running_tasks_required_for_activation_pending_count_)
client_->DidFinishRunningTasksRequiredForActivation();
if (!did_finish_running_tasks_pending_count_)
client_->DidFinishRunningTasks();
}
} // namespace cc
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