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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wconversion"
#include "LayerVector.h"
#include "Layer.h"
namespace android {
LayerVector::LayerVector(const StateSet stateSet) : mStateSet(stateSet) {}
LayerVector::LayerVector(const LayerVector& rhs, const StateSet stateSet)
: SortedVector<sp<Layer>>(rhs), mStateSet(stateSet) {}
LayerVector::~LayerVector() = default;
// This operator override is needed to prevent mStateSet from getting copied over.
LayerVector& LayerVector::operator=(const LayerVector& rhs) {
SortedVector::operator=(rhs);
return *this;
}
int LayerVector::do_compare(const void* lhs, const void* rhs) const
{
// sort layers per layer-stack, then by z-order and finally by sequence
const auto& l = *reinterpret_cast<const sp<Layer>*>(lhs);
const auto& r = *reinterpret_cast<const sp<Layer>*>(rhs);
const auto& lState = l->getDrawingState();
const auto& rState = r->getDrawingState();
uint32_t ls = lState.layerStack;
uint32_t rs = rState.layerStack;
if (ls != rs)
return (ls > rs) ? 1 : -1;
int32_t lz = lState.z;
int32_t rz = rState.z;
if (lz != rz)
return (lz > rz) ? 1 : -1;
if (l->sequence == r->sequence)
return 0;
return (l->sequence > r->sequence) ? 1 : -1;
}
void LayerVector::traverseInZOrder(StateSet stateSet, const Visitor& visitor) const {
for (size_t i = 0; i < size(); i++) {
const auto& layer = (*this)[i];
auto& state = layer->getDrawingState();
if (state.isRelativeOf) {
continue;
}
layer->traverseInZOrder(stateSet, visitor);
}
}
void LayerVector::traverseInReverseZOrder(StateSet stateSet, const Visitor& visitor) const {
for (auto i = static_cast<int64_t>(size()) - 1; i >= 0; i--) {
const auto& layer = (*this)[i];
auto& state = layer->getDrawingState();
if (state.isRelativeOf) {
continue;
}
layer->traverseInReverseZOrder(stateSet, visitor);
}
}
void LayerVector::traverse(const Visitor& visitor) const {
for (auto i = static_cast<int64_t>(size()) - 1; i >= 0; i--) {
const auto& layer = (*this)[i];
layer->traverse(mStateSet, visitor);
}
}
} // namespace android
// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic pop // ignored "-Wconversion"
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