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// Copyright 2011 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 "managed_memory_policy.h"
#include "base/logging.h"
#include "priority_calculator.h"
namespace cc {
ManagedMemoryPolicy::ManagedMemoryPolicy(size_t bytesLimitWhenVisible)
: bytesLimitWhenVisible(bytesLimitWhenVisible)
, priorityCutoffWhenVisible(CUTOFF_ALLOW_EVERYTHING)
, bytesLimitWhenNotVisible(0)
, priorityCutoffWhenNotVisible(CUTOFF_ALLOW_NOTHING)
{
}
ManagedMemoryPolicy::ManagedMemoryPolicy(size_t bytesLimitWhenVisible,
PriorityCutoff priorityCutoffWhenVisible,
size_t bytesLimitWhenNotVisible,
PriorityCutoff priorityCutoffWhenNotVisible)
: bytesLimitWhenVisible(bytesLimitWhenVisible)
, priorityCutoffWhenVisible(priorityCutoffWhenVisible)
, bytesLimitWhenNotVisible(bytesLimitWhenNotVisible)
, priorityCutoffWhenNotVisible(priorityCutoffWhenNotVisible)
{
}
bool ManagedMemoryPolicy::operator==(const ManagedMemoryPolicy& other) const
{
return bytesLimitWhenVisible == other.bytesLimitWhenVisible &&
priorityCutoffWhenVisible == other.priorityCutoffWhenVisible &&
bytesLimitWhenNotVisible == other.bytesLimitWhenNotVisible &&
priorityCutoffWhenNotVisible == other.priorityCutoffWhenNotVisible;
}
bool ManagedMemoryPolicy::operator!=(const ManagedMemoryPolicy& other) const
{
return !(*this == other);
}
// static
int ManagedMemoryPolicy::priorityCutoffToValue(PriorityCutoff priorityCutoff)
{
switch (priorityCutoff) {
case CUTOFF_ALLOW_NOTHING:
return PriorityCalculator::allowNothingCutoff();
case CUTOFF_ALLOW_REQUIRED_ONLY:
return PriorityCalculator::allowVisibleOnlyCutoff();
case CUTOFF_ALLOW_NICE_TO_HAVE:
return PriorityCalculator::allowVisibleAndNearbyCutoff();
case CUTOFF_ALLOW_EVERYTHING:
return PriorityCalculator::allowEverythingCutoff();
}
NOTREACHED();
return PriorityCalculator::allowNothingCutoff();
}
// static
TileMemoryLimitPolicy ManagedMemoryPolicy::priorityCutoffToTileMemoryLimitPolicy(PriorityCutoff priorityCutoff)
{
switch (priorityCutoff) {
case CUTOFF_ALLOW_NOTHING:
return ALLOW_NOTHING;
case CUTOFF_ALLOW_REQUIRED_ONLY:
return ALLOW_ABSOLUTE_MINIMUM;
case CUTOFF_ALLOW_NICE_TO_HAVE:
return ALLOW_PREPAINT_ONLY;
case CUTOFF_ALLOW_EVERYTHING:
return ALLOW_ANYTHING;
}
NOTREACHED();
return ALLOW_NOTHING;
}
} // namespace cc
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