gpu_submission_tracker.cc

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// Copyright 2013 The Flutter 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 "impeller/core/gpu_submission_tracker.h"
 
#include <algorithm>
 
namespace impeller {
 
uint64_t GpuSubmissionTracker::RecordSubmission() {
  Lock lock(mutex_);
  uint64_t id = ++last_id_;
  pending_.push_back(id);
  return id;
}
 
void GpuSubmissionTracker::RecordCompletion(uint64_t id) {
  Lock lock(mutex_);
  auto it = std::lower_bound(pending_.begin(), pending_.end(), id);
  if (it != pending_.end() && *it == id) {
    pending_.erase(it);
  }
}
 
uint64_t GpuSubmissionTracker::CompletedThrough() const {
  Lock lock(mutex_);
  if (pending_.empty()) {
    return last_id_;
  }
  return pending_.front() - 1;
}
 
uint64_t GpuSubmissionTracker::LatestSubmission() const {
  Lock lock(mutex_);
  return last_id_;
}
 
}  // namespace impeller