cc/output/managed_memory_policy.h

   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
  13 namespace cc {
  14
  15 struct 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_