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// Copyright 2013 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 "cc/output/managed_memory_policy.h"
#include "base/logging.h"
#include "cc/resources/priority_calculator.h"
namespace cc {
const size_t ManagedMemoryPolicy::kDefaultNumResourcesLimit = 10 * 1000 * 1000;
using gpu::MemoryAllocation;
ManagedMemoryPolicy::ManagedMemoryPolicy(size_t bytes_limit_when_visible)
: bytes_limit_when_visible(bytes_limit_when_visible),
priority_cutoff_when_visible(MemoryAllocation::CUTOFF_ALLOW_EVERYTHING),
num_resources_limit(kDefaultNumResourcesLimit) {}
ManagedMemoryPolicy::ManagedMemoryPolicy(
const gpu::MemoryAllocation& allocation)
: bytes_limit_when_visible(allocation.bytes_limit_when_visible),
priority_cutoff_when_visible(allocation.priority_cutoff_when_visible),
num_resources_limit(kDefaultNumResourcesLimit) {}
ManagedMemoryPolicy::ManagedMemoryPolicy(
size_t bytes_limit_when_visible,
MemoryAllocation::PriorityCutoff priority_cutoff_when_visible,
size_t num_resources_limit)
: bytes_limit_when_visible(bytes_limit_when_visible),
priority_cutoff_when_visible(priority_cutoff_when_visible),
num_resources_limit(num_resources_limit) {}
bool ManagedMemoryPolicy::operator==(const ManagedMemoryPolicy& other) const {
return bytes_limit_when_visible == other.bytes_limit_when_visible &&
priority_cutoff_when_visible == other.priority_cutoff_when_visible &&
num_resources_limit == other.num_resources_limit;
}
bool ManagedMemoryPolicy::operator!=(const ManagedMemoryPolicy& other) const {
return !(*this == other);
}
// static
int ManagedMemoryPolicy::PriorityCutoffToValue(
MemoryAllocation::PriorityCutoff priority_cutoff) {
switch (priority_cutoff) {
case MemoryAllocation::CUTOFF_ALLOW_NOTHING:
return PriorityCalculator::AllowNothingCutoff();
case MemoryAllocation::CUTOFF_ALLOW_REQUIRED_ONLY:
return PriorityCalculator::AllowVisibleOnlyCutoff();
case MemoryAllocation::CUTOFF_ALLOW_NICE_TO_HAVE:
return PriorityCalculator::AllowVisibleAndNearbyCutoff();
case MemoryAllocation::CUTOFF_ALLOW_EVERYTHING:
return PriorityCalculator::AllowEverythingCutoff();
}
NOTREACHED();
return PriorityCalculator::AllowNothingCutoff();
}
// static
TileMemoryLimitPolicy
ManagedMemoryPolicy::PriorityCutoffToTileMemoryLimitPolicy(
gpu::MemoryAllocation::PriorityCutoff priority_cutoff) {
switch (priority_cutoff) {
case MemoryAllocation::CUTOFF_ALLOW_NOTHING:
return ALLOW_NOTHING;
case MemoryAllocation::CUTOFF_ALLOW_REQUIRED_ONLY:
return ALLOW_ABSOLUTE_MINIMUM;
case MemoryAllocation::CUTOFF_ALLOW_NICE_TO_HAVE:
return ALLOW_PREPAINT_ONLY;
case MemoryAllocation::CUTOFF_ALLOW_EVERYTHING:
return ALLOW_ANYTHING;
}
NOTREACHED();
return ALLOW_NOTHING;
}
} // namespace cc
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