66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
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/*
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* Copyright (C) 2021 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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#ifndef ANDROID_HWC_COMPOSER_H
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#define ANDROID_HWC_COMPOSER_H
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#include <android-base/unique_fd.h>
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#include <functional>
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#include <tuple>
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#include <unordered_map>
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#include <vector>
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#include "Common.h"
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namespace android {
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class Device;
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class Display;
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class Composer {
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public:
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virtual ~Composer() {}
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using HotplugCallback = std::function<void(
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bool /*connected*/, uint32_t /*id*/, uint32_t /*width*/,
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uint32_t /*height*/, uint32_t /*dpiX*/, uint32_t /*dpiY*/,
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uint32_t /*refreshRate*/)>;
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virtual HWC2::Error init() = 0;
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virtual HWC2::Error onDisplayCreate(Display* display) = 0;
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virtual HWC2::Error onDisplayDestroy(Display* display) = 0;
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virtual HWC2::Error onDisplayClientTargetSet(Display* display) = 0;
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// Determines if this composer can compose the given layers and requests
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// changes for layers that can't not be composed.
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virtual HWC2::Error validateDisplay(
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Display* display, std::unordered_map<hwc2_layer_t, HWC2::Composition>*
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outLayerCompositionChanges) = 0;
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// Performs the actual composition of layers and presents the composed result
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// to the display.
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virtual std::tuple<HWC2::Error, base::unique_fd> presentDisplay(
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Display* display) = 0;
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virtual HWC2::Error onActiveConfigChange(Display* display) = 0;
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};
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} // namespace android
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#endif
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