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_TREES_MANAGED_MEMORY_POLICY_H_
6 #define CC_TREES_MANAGED_MEMORY_POLICY_H_
7 
8 #include <stddef.h>
9 
10 #include "cc/cc_export.h"
11 #include "cc/tiles/tile_priority.h"
12 #include "gpu/command_buffer/common/gpu_memory_allocation.h"
13 
14 namespace cc {
15 
16 namespace proto {
17 class ManagedMemoryPolicy;
18 }  // namespace proto
19 
20 struct CC_EXPORT ManagedMemoryPolicy {
21   static const size_t kDefaultNumResourcesLimit;
22 
23   explicit ManagedMemoryPolicy(size_t bytes_limit_when_visible);
24   explicit ManagedMemoryPolicy(const gpu::MemoryAllocation& allocation);
25   ManagedMemoryPolicy(
26       size_t bytes_limit_when_visible,
27       gpu::MemoryAllocation::PriorityCutoff priority_cutoff_when_visible,
28       size_t num_resources_limit);
29   bool operator==(const ManagedMemoryPolicy&) const;
30   bool operator!=(const ManagedMemoryPolicy&) const;
31 
32   size_t bytes_limit_when_visible;
33   gpu::MemoryAllocation::PriorityCutoff priority_cutoff_when_visible;
34   size_t num_resources_limit;
35 
36   static TileMemoryLimitPolicy PriorityCutoffToTileMemoryLimitPolicy(
37       gpu::MemoryAllocation::PriorityCutoff priority_cutoff);
38 };
39 
40 }  // namespace cc
41 
42 #endif  // CC_TREES_MANAGED_MEMORY_POLICY_H_
43