150 lines
3.9 KiB
C++
150 lines
3.9 KiB
C++
/*
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* Copyright (C) 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <memory>
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#include "bufferinfo/BufferInfo.h"
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#include "bufferinfo/BufferInfoGetter.h"
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#include "compositor/LayerData.h"
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#include "utils/fd.h"
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namespace android::drm_hwcomposer {
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class HwcDisplay;
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class FrontendLayerBase {
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public:
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virtual ~FrontendLayerBase() = default;
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};
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class HwcLayer {
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public:
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struct Buffer {
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int32_t slot_id;
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std::optional<BufferInfo> bi;
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};
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struct Slot {
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int32_t slot_id;
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SharedFd fence;
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};
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// A set of properties to be validated.
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struct LayerProperties {
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std::optional<Buffer> slot_buffer;
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std::optional<Slot> active_slot;
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std::optional<BufferBlendMode> blend_mode;
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std::optional<BufferColorSpace> color_space;
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std::optional<BufferSampleRange> sample_range;
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std::optional<CompositionType> composition_type;
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std::optional<DstRectInfo> display_frame;
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std::optional<float> alpha;
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std::optional<SrcRectInfo> source_crop;
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std::optional<LayerTransform> transform;
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std::optional<uint32_t> z_order;
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std::optional<DamageInfo> damage;
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};
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explicit HwcLayer(HwcDisplay *parent_display) : parent_(parent_display){};
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CompositionType GetSfType() const {
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return sf_type_;
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}
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CompositionType GetValidatedType() const {
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return validated_type_;
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}
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void AcceptTypeChange() {
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sf_type_ = validated_type_;
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}
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void SetValidatedType(CompositionType type) {
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validated_type_ = type;
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}
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bool IsTypeChanged() const {
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return sf_type_ != validated_type_;
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}
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bool GetPriorBufferScanOutFlag() const {
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return prior_buffer_scanout_flag_;
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}
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void SetPriorBufferScanOutFlag(bool state) {
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prior_buffer_scanout_flag_ = state;
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}
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uint32_t GetZOrder() const {
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return z_order_;
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}
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LayerData &GetLayerData() {
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return layer_data_;
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}
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const LayerData &GetLayerData() const {
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return layer_data_;
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}
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void SetLayerProperties(const LayerProperties &layer_properties);
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auto GetFrontendPrivateData() -> std::shared_ptr<FrontendLayerBase> {
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return frontend_private_data_;
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}
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auto SetFrontendPrivateData(std::shared_ptr<FrontendLayerBase> data) {
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frontend_private_data_ = std::move(data);
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}
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private:
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// sf_type_ stores the initial type given to us by surfaceflinger,
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// validated_type_ stores the type after running ValidateDisplay
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CompositionType sf_type_ = CompositionType::kInvalid;
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CompositionType validated_type_ = CompositionType::kInvalid;
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uint32_t z_order_ = 0;
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LayerData layer_data_;
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/* The following buffer data can have 2 sources:
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* 1 - Mapper@4 metadata API
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* 2 - HWC@2 API
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* We keep ability to have 2 sources in drm_hwc. It may be useful for CLIENT
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* layer, at this moment HWC@2 API can't specify blending mode for this layer,
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* but Mapper@4 can do that
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*/
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BufferColorSpace color_space_{};
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BufferSampleRange sample_range_{};
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BufferBlendMode blend_mode_{};
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bool prior_buffer_scanout_flag_{};
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HwcDisplay *const parent_;
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std::shared_ptr<FrontendLayerBase> frontend_private_data_;
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std::optional<int32_t> active_slot_id_;
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struct BufferSlot {
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BufferInfo bi;
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std::shared_ptr<DrmFbIdHandle> fb;
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};
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std::map<int32_t /*slot*/, BufferSlot> slots_;
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bool ImportFb(BufferSlot &slot) const;
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public:
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void PopulateLayerData();
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void ClearSlots();
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bool IsLayerUsableAsDevice() const;
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};
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} // namespace android::drm_hwcomposer
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