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// Copyright 2016 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 "platform/graphics/CompositorMutatorClient.h"
#include "base/bind.h"
#include "base/callback.h"
#include "base/trace_event/trace_event.h"
#include "cc/trees/layer_tree_impl.h"
#include "platform/graphics/CompositorMutableStateProvider.h"
#include "platform/graphics/CompositorMutation.h"
#include "platform/graphics/CompositorMutationsTarget.h"
#include "platform/graphics/CompositorMutator.h"
#include "wtf/PtrUtil.h"
#include <memory>
namespace blink {
CompositorMutatorClient::CompositorMutatorClient(
CompositorMutator* mutator,
CompositorMutationsTarget* mutationsTarget)
: m_client(nullptr),
m_mutationsTarget(mutationsTarget),
m_mutator(mutator),
m_mutations(nullptr) {
TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("compositor-worker"),
"CompositorMutatorClient::CompositorMutatorClient");
}
CompositorMutatorClient::~CompositorMutatorClient() {
TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("compositor-worker"),
"CompositorMutatorClient::~CompositorMutatorClient");
}
bool CompositorMutatorClient::Mutate(base::TimeTicks monotonicTime,
cc::LayerTreeImpl* treeImpl) {
TRACE_EVENT0("compositor-worker", "CompositorMutatorClient::Mutate");
double monotonicTimeNow = (monotonicTime - base::TimeTicks()).InSecondsF();
if (!m_mutations)
m_mutations = WTF::wrapUnique(new CompositorMutations);
CompositorMutableStateProvider compositorState(treeImpl, m_mutations.get());
bool shouldReinvoke = m_mutator->mutate(monotonicTimeNow, &compositorState);
return shouldReinvoke;
}
void CompositorMutatorClient::SetClient(cc::LayerTreeMutatorClient* client) {
TRACE_EVENT0("compositor-worker", "CompositorMutatorClient::SetClient");
m_client = client;
setNeedsMutate();
}
base::Closure CompositorMutatorClient::TakeMutations() {
TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("compositor-worker"),
"CompositorMutatorClient::TakeMutations");
if (!m_mutations)
return base::Closure();
return base::Bind(&CompositorMutationsTarget::applyMutations,
base::Unretained(m_mutationsTarget),
base::Owned(m_mutations.release()));
}
void CompositorMutatorClient::setNeedsMutate() {
TRACE_EVENT0("compositor-worker", "CompositorMutatorClient::setNeedsMutate");
m_client->SetNeedsMutate();
}
void CompositorMutatorClient::setMutationsForTesting(
std::unique_ptr<CompositorMutations> mutations) {
m_mutations = std::move(mutations);
}
} // namespace blink
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