cc/output/managed_memory_policy.cc

   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 #include "cc/output/managed_memory_policy.h"
   6
   7 #include "base/logging.h"
   8
   9 namespace cc {
  10
  11 const size_t ManagedMemoryPolicy::kDefaultNumResourcesLimit = 10 * 1000 * 1000;
  12
  13 using gpu::MemoryAllocation;
  14
  15 ManagedMemoryPolicy::ManagedMemoryPolicy(size_t bytes_limit_when_visible)
  16     : bytes_limit_when_visible(bytes_limit_when_visible),
  17       priority_cutoff_when_visible(MemoryAllocation::CUTOFF_ALLOW_EVERYTHING),
  18       num_resources_limit(kDefaultNumResourcesLimit) {}
  19
  20 ManagedMemoryPolicy::ManagedMemoryPolicy(
  21     const gpu::MemoryAllocation& allocation)
  22     : bytes_limit_when_visible(allocation.bytes_limit_when_visible),
  23       priority_cutoff_when_visible(allocation.priority_cutoff_when_visible),
  24       num_resources_limit(kDefaultNumResourcesLimit) {}
  25
  26 ManagedMemoryPolicy::ManagedMemoryPolicy(
  27     size_t bytes_limit_when_visible,
  28     MemoryAllocation::PriorityCutoff priority_cutoff_when_visible,
  29     size_t num_resources_limit)
  30     : bytes_limit_when_visible(bytes_limit_when_visible),
  31       priority_cutoff_when_visible(priority_cutoff_when_visible),
  32       num_resources_limit(num_resources_limit) {}
  33
  34 bool ManagedMemoryPolicy::operator==(const ManagedMemoryPolicy& other) const {
  35   return bytes_limit_when_visible == other.bytes_limit_when_visible &&
  36          priority_cutoff_when_visible == other.priority_cutoff_when_visible &&
  37          num_resources_limit == other.num_resources_limit;
  38 }
  39
  40 bool ManagedMemoryPolicy::operator!=(const ManagedMemoryPolicy& other) const {
  41   return !(*this == other);
  42 }
  43
  44 // static
  45 TileMemoryLimitPolicy
  46 ManagedMemoryPolicy::PriorityCutoffToTileMemoryLimitPolicy(
  47     gpu::MemoryAllocation::PriorityCutoff priority_cutoff) {
  48   switch (priority_cutoff) {
  49     case MemoryAllocation::CUTOFF_ALLOW_NOTHING:
  50       return ALLOW_NOTHING;
  51     case MemoryAllocation::CUTOFF_ALLOW_REQUIRED_ONLY:
  52       return ALLOW_ABSOLUTE_MINIMUM;
  53     case MemoryAllocation::CUTOFF_ALLOW_NICE_TO_HAVE:
  54       return ALLOW_PREPAINT_ONLY;
  55     case MemoryAllocation::CUTOFF_ALLOW_EVERYTHING:
  56       return ALLOW_ANYTHING;
  57   }
  58   NOTREACHED();
  59   return ALLOW_NOTHING;
  60 }
  61
  62 }  // namespace cc