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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_RASTER_RASTER_QUERY_QUEUE_H_
#define CC_RASTER_RASTER_QUERY_QUEUE_H_
#include "base/containers/circular_deque.h"
#include "base/memory/raw_ptr.h"
#include "base/synchronization/lock.h"
#include "base/thread_annotations.h"
#include "base/time/time.h"
#include "cc/cc_export.h"
#include "third_party/khronos/GLES2/gl2.h"
namespace viz {
class RasterContextProvider;
} // namespace viz
namespace cc {
struct CC_EXPORT RasterQuery {
RasterQuery();
~RasterQuery();
// The id for querying the duration in executing the GPU side work.
GLuint raster_duration_query_id = 0u;
// The duration for executing the work on the raster worker thread.
base::TimeDelta worker_raster_duration;
};
class CC_EXPORT RasterQueryQueue {
public:
explicit RasterQueryQueue(
viz::RasterContextProvider* const worker_context_provider);
virtual ~RasterQueryQueue();
// These functions should never be called with the raster context lock
// acquired.
void Append(RasterQuery raster_query);
// This function is only virtual for testing purposes.
virtual bool CheckRasterFinishedQueries();
private:
const raw_ptr<viz::RasterContextProvider> worker_context_provider_;
// Note that this lock should never be acquired while holding the raster
// context lock.
base::Lock pending_raster_queries_lock_;
base::circular_deque<RasterQuery> pending_raster_queries_
GUARDED_BY(pending_raster_queries_lock_);
};
} // namespace cc
#endif // CC_RASTER_RASTER_QUERY_QUEUE_H_
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