1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CC_OUTPUT_MANAGED_MEMORY_POLICY_H_
6#define CC_OUTPUT_MANAGED_MEMORY_POLICY_H_
7
8#include "base/basictypes.h"
9#include "cc/base/cc_export.h"
10#include "cc/resources/tile_priority.h"
11#include "gpu/command_buffer/common/gpu_memory_allocation.h"
12
13namespace cc {
14
15struct CC_EXPORT ManagedMemoryPolicy {
16  static const size_t kDefaultNumResourcesLimit;
17
18  explicit ManagedMemoryPolicy(size_t bytes_limit_when_visible);
19  explicit ManagedMemoryPolicy(
20      const gpu::MemoryAllocation& allocation);
21  ManagedMemoryPolicy(
22      size_t bytes_limit_when_visible,
23      gpu::MemoryAllocation::PriorityCutoff priority_cutoff_when_visible,
24      size_t num_resources_limit);
25  bool operator==(const ManagedMemoryPolicy&) const;
26  bool operator!=(const ManagedMemoryPolicy&) const;
27
28  size_t bytes_limit_when_visible;
29  gpu::MemoryAllocation::PriorityCutoff priority_cutoff_when_visible;
30  size_t num_resources_limit;
31
32  static int PriorityCutoffToValue(
33      gpu::MemoryAllocation::PriorityCutoff priority_cutoff);
34  static TileMemoryLimitPolicy PriorityCutoffToTileMemoryLimitPolicy(
35      gpu::MemoryAllocation::PriorityCutoff priority_cutoff);
36};
37
38}  // namespace cc
39
40#endif  // CC_OUTPUT_MANAGED_MEMORY_POLICY_H_
41