blob: 2c0b044acd26ce04892626a1acf4ab5043c0762c [file] [log] [blame]
// Copyright 2018 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 "base/cancelable_callback.h"
#include "base/single_thread_task_runner.h"
#include "gpu/gpu_gles2_export.h"
namespace gpu {
namespace raster {
struct RasterDecoderContextState;
// Manages clearing the GrContext cache after a period of inactivity.
// TODO(khushalsagar): This class replicates the ContextCacheController used in
// the renderer with GPU raster but ideally this logic should exist in the
// gpu::Scheduler, since it can better identify when we are in an idle state.
class GPU_GLES2_EXPORT GrCacheController {
GrCacheController(RasterDecoderContextState* context_state,
scoped_refptr<base::SingleThreadTaskRunner> task_runner);
// Called to schedule purging the GrCache after a period of inactivity.
void ScheduleGrContextCleanup();
void PurgeGrCache(uint64_t idle_id);
// The |current_idle_id_| is used to avoid continuously posting tasks to clear
// the GrContext. Each time the context is used this id is incremented and
// added to the callback. If the context is used between the time the callback
// is posted and run, it sees a different id and further delays clearing the
// cache.
uint64_t current_idle_id_ = 0u;
base::CancelableOnceClosure purge_gr_cache_cb_;
RasterDecoderContextState* context_state_;
scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
} // namespace raster
} // namespace gpu