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/*
* Copyright 2019 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.
*/
#pragma once
#include <cstdint>
#include <optional>
#include <string>
#include <compositionengine/impl/HwcBufferCache.h>
#include <renderengine/Mesh.h>
#include <ui/FloatRect.h>
#include <ui/GraphicTypes.h>
#include <ui/Rect.h>
#include <ui/Region.h>
// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wconversion"
#include "DisplayHardware/ComposerHal.h"
// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic pop // ignored "-Wconversion"
namespace android {
namespace HWC2 {
class Layer;
} // namespace HWC2
class HWComposer;
namespace compositionengine::impl {
struct OutputLayerCompositionState {
// The portion of the layer that is not obscured by opaque layers on top
Region visibleRegion;
// The portion of the layer that is not obscured and is also opaque
Region visibleNonTransparentRegion;
// The portion of the layer that is obscured by opaque layers on top
Region coveredRegion;
// The visibleRegion transformed to output space
Region outputSpaceVisibleRegion;
// Region cast by the layer's shadow
Region shadowRegion;
// If true, client composition will be used on this output
bool forceClientComposition{false};
// If true, when doing client composition, the target may need to be cleared
bool clearClientTarget{false};
// The display frame for this layer on this output
Rect displayFrame;
// The source crop for this layer on this output
FloatRect sourceCrop;
// The buffer transform to use for this layer o on this output.
Hwc2::Transform bufferTransform{static_cast<Hwc2::Transform>(0)};
// The dataspace for this layer
ui::Dataspace dataspace{ui::Dataspace::UNKNOWN};
// The Z order index of this layer on this output
uint32_t z{0};
/*
* HWC state
*/
struct Hwc {
explicit Hwc(std::shared_ptr<HWC2::Layer> hwcLayer) : hwcLayer(hwcLayer) {}
// The HWC Layer backing this layer
std::shared_ptr<HWC2::Layer> hwcLayer;
// The most recently set HWC composition type for this layer
Hwc2::IComposerClient::Composition hwcCompositionType{
Hwc2::IComposerClient::Composition::INVALID};
// The buffer cache for this layer. This is used to lower the
// cost of sending reused buffers to the HWC.
HwcBufferCache hwcBufferCache;
};
// The HWC state is optional, and is only set up if there is any potential
// HWC acceleration possible.
std::optional<Hwc> hwc;
// Debugging
void dump(std::string& result) const;
// Timestamp for when the layer is queued for client composition
nsecs_t clientCompositionTimestamp;
};
} // namespace compositionengine::impl
} // namespace android
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